Finding the Fourth Proportional to 99,123.12, 136,788.96 and 53,801.04

Step by Step Solution

1. Step 1: Write the proportion equation
   99,123.12 : 136,788.96 = 53,801.04 : x
2. Step 2: Convert to fraction form
   99,123.12/136,788.96 = 53,801.04/x
3. Step 3: Cross multiply
   99,123.12x = 136,788.96 × 53,801.04
4. Step 4: Simplify right side
   99,123.12x = 7,359,388,308.52
5. Step 5: Solve for x
   x = 7,359,388,308.52/99,123.12
6. Step 6: Final answer
   x = 74,244.92