Look just at his contest results and you can speculate that just in this one aspect of his buiness/ski career he's made some serious money.
13 Medals (ranging from bronze to gold) X average winning purse of $5,000 = $65,000
$65,000 in earnings X 5 sponsors matching earnings = $325,000
$10,00 in appearances
$400,000 in contest earnings alone, and that's most likely an underestimate