Finding the Fourth Proportional to 99,562.88, 137,396.72 and 54,850.88

Step by Step Solution

1. Step 1: Write the proportion equation
   99,562.88 : 137,396.72 = 54,850.88 : x
2. Step 2: Convert to fraction form
   99,562.88/137,396.72 = 54,850.88/x
3. Step 3: Cross multiply
   99,562.88x = 137,396.72 × 54,850.88
4. Step 4: Simplify right side
   99,562.88x = 7,536,331,001.11
5. Step 5: Solve for x
   x = 7,536,331,001.11/99,562.88
6. Step 6: Final answer
   x = 75,694.18