(Reuters) - Billionaire investor Warren Buffett was thwarted in trying to spend some of the $128.2 billion of cash at his Berkshire Hathaway Inc , after a private equity firm outbid him to buy technology equipment distributor Tech Data Corp for $5.14 billion (£4.01 billion), CNBC said on Friday.Berkshire did not respond to requests for comment.Apollo Global Management Inc agreed on Wednesday to pay $145 per share for Tech Data, sweetening its original $130 per share bid after a public company..