E4-33. Comparing Firms Using Ratio Analysis Consider the following data for several firms from 2017 ($ millions): Average current Cash from Expenditures Wal-Mart Stores, Inc. ...... The Coca-Cola Company.. Exxon Mobil Corporation.... Proceeds from liabilities operations on PPE the sale of PPE $72,725 $28,337 $10,051 $378 26,863 6,995 1,675 104 52,705 30,066 15,402 3,103 a. Compute the operating cash flow to current liabilities (OCFCL) ratio for each firm. b. Compute the free cash flow for each firm. Comment on the results of your computations.