Finding the Fourth Proportional to 72,021,241.80, 99,389,305.98 and 38,981,485.62

Step by Step Solution

1. Step 1: Write the proportion equation
   72,021,241.80 : 99,389,305.98 = 38,981,485.62 : x
2. Step 2: Convert to fraction form
   72,021,241.80/99,389,305.98 = 38,981,485.62/x
3. Step 3: Cross multiply
   72,021,241.80x = 99,389,305.98 × 38,981,485.62
4. Step 4: Simplify right side
   72,021,241.80x = 3,874,342,801,841,150
5. Step 5: Solve for x
   x = 3,874,342,801,841,150/72,021,241.80
6. Step 6: Final answer
   x = 53,794,445.99