The two met in September at an event at his vineyard in California.
In March, the businessman told the New York Post, one of his own publications: "I dreaded falling in love - but I knew this would be my last. It better be. I'm happy."
Mr Murdoch, the Australian-born US magnate, added that he proposed to Ms Smith on St Patrick's Day (17 March), noting that he was "one fourth Irish" and had been "very nervous". เว็บบาคาร่า