Finding the Fourth Proportional to 99,025.68, 136,653.57 and 56,004.42

Step by Step Solution

1. Step 1: Write the proportion equation
   99,025.68 : 136,653.57 = 56,004.42 : x
2. Step 2: Convert to fraction form
   99,025.68/136,653.57 = 56,004.42/x
3. Step 3: Cross multiply
   99,025.68x = 136,653.57 × 56,004.42
4. Step 4: Simplify right side
   99,025.68x = 7,653,203,928.78
5. Step 5: Solve for x
   x = 7,653,203,928.78/99,025.68
6. Step 6: Final answer
   x = 77,285.04