Hollywood Shoes would like to maintain their cash account at a minimum level of $50,000, but expect the standard deviation in net daily cash flows to be $4.000, the effective annual rate on marketable securities to be 6.00 percent per year, and the trading cost per sale or purchase of marketable securities to be $100 per transaction. What will be their optimal upper cash limit? (Round your answer to the nearest dollar amount) $54000 $71, 559.92 $108765.41 $73729.76