Finding the Fourth Proportional to 99,158.47, 136,838.12 and 53,836.06

Step by Step Solution

1. Step 1: Write the proportion equation
   99,158.47 : 136,838.12 = 53,836.06 : x
2. Step 2: Convert to fraction form
   99,158.47/136,838.12 = 53,836.06/x
3. Step 3: Cross multiply
   99,158.47x = 136,838.12 × 53,836.06
4. Step 4: Simplify right side
   99,158.47x = 7,366,825,238.61
5. Step 5: Solve for x
   x = 7,366,825,238.61/99,158.47
6. Step 6: Final answer
   x = 74,293.45