Finding the Fourth Proportional to 99,124.29, 136,790.24 and 53,801.89

Step by Step Solution

1. Step 1: Write the proportion equation
   99,124.29 : 136,790.24 = 53,801.89 : x
2. Step 2: Convert to fraction form
   99,124.29/136,790.24 = 53,801.89/x
3. Step 3: Cross multiply
   99,124.29x = 136,790.24 × 53,801.89
4. Step 4: Simplify right side
   99,124.29x = 7,359,572,834.57
5. Step 5: Solve for x
   x = 7,359,572,834.57/99,124.29
6. Step 6: Final answer
   x = 74,245.91