Finding the Fourth Proportional to 72,061,047.87, 99,444,066.47 and 39,021,294.95

Step by Step Solution

1. Step 1: Write the proportion equation
   72,061,047.87 : 99,444,066.47 = 39,021,294.95 : x
2. Step 2: Convert to fraction form
   72,061,047.87/99,444,066.47 = 39,021,294.95/x
3. Step 3: Cross multiply
   72,061,047.87x = 99,444,066.47 × 39,021,294.95
4. Step 4: Simplify right side
   72,061,047.87x = 3,880,436,248,799,688
5. Step 5: Solve for x
   x = 3,880,436,248,799,688/72,061,047.87
6. Step 6: Final answer
   x = 53,849,289.79