Tech giants' investments in cloud infrastructure are reportedly paying off due to the demand for artificial intelligence.Microsoft, Amazon, and Google earned a combined revenue of $62.9 billion last quarter from their cloud businesses, up 22.2% from a year earlier.These companies are continuing to spend on property and equipment to build more data centers to meet the growing demand for AI infrastructure.Other tech giants like Meta, AMD, and OpenAI are also investing heavily in AI infrastructure to capitalize on its potential.