Finding the Fourth Proportional to 99,124.91, 136,792.49 and 53,802.89

Step by Step Solution

1. Step 1: Write the proportion equation
   99,124.91 : 136,792.49 = 53,802.89 : x
2. Step 2: Convert to fraction form
   99,124.91/136,792.49 = 53,802.89/x
3. Step 3: Cross multiply
   99,124.91x = 136,792.49 × 53,802.89
4. Step 4: Simplify right side
   99,124.91x = 7,359,830,339.32
5. Step 5: Solve for x
   x = 7,359,830,339.32/99,124.91
6. Step 6: Final answer
   x = 74,248.04