E4-33. Comparing Firms Using Ratio Analysis Consider the following data for several firms from 2013 ($ millions): Average current Cash from liabilities operations Wal-Mart Stores, Inc. ........ The Coca-Cola Company.... Exxon Mobil Corporation..... $70,582 27,816 67,932 $23,257 10,542 44,914 Expenditures Proceeds from on PPE the sale of PPE $13,115 $ 727 2,550 111 33,669 2,707 a. b. C. Compute the operating cash flow to current liabilities (OCFCL) ratio for each firm. Compute the free cash flow for each firm. Comment on the results of your computations