Cloud computing has emerged as a transformative paradigm that enables organizations to deliver scalable, flexible, and cost-effective computing resources over the internet. This study presents a comprehensive analysis of cloud computing technologies and their integration with intelligent enterprise systems to enhance business efficiency, agility, and innovation. It explores core service models—Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS)—along with deployment models such as public, private, hybrid, and multi-cloud environments. The paper further examines how intelligent enterprise systems leverage advanced technologies including artificial intelligence (AI), machine learning (ML), big data analytics, and the Internet of Things (IoT) to support data-driven decision-making and automation. Key architectural components, security considerations, data management strategies, and performance optimization techniques are discussed in detail. Additionally, the study highlights real-world applications across industries such as healthcare, finance, manufacturing, and retail, demonstrating how cloud-enabled intelligent systems drive digital transformation. Challenges related to data privacy, interoperability, vendor lock-in, and governance are critically analyzed, along with potential solutions and future research directions. The findings emphasize that the convergence of cloud computing and intelligent enterprise systems is essential for building resilient, adaptive, and competitive organizations in the digital era.