Finding the Fourth Proportional to 99,123,262.88, 136,792,380.98 and 54,472,010.96

Step by Step Solution

1. Step 1: Write the proportion equation
   99,123,262.88 : 136,792,380.98 = 54,472,010.96 : x
2. Step 2: Convert to fraction form
   99,123,262.88/136,792,380.98 = 54,472,010.96/x
3. Step 3: Cross multiply
   99,123,262.88x = 136,792,380.98 × 54,472,010.96
4. Step 4: Simplify right side
   99,123,262.88x = 7,451,356,075,987,055
5. Step 5: Solve for x
   x = 7,451,356,075,987,055/99,123,262.88
6. Step 6: Final answer
   x = 75,172,627.09