Finding the Fourth Proportional to 99,650.32, 137,517.48 and 54,938.32

Step by Step Solution

1. Step 1: Write the proportion equation
   99,650.32 : 137,517.48 = 54,938.32 : x
2. Step 2: Convert to fraction form
   99,650.32/137,517.48 = 54,938.32/x
3. Step 3: Cross multiply
   99,650.32x = 137,517.48 × 54,938.32
4. Step 4: Simplify right side
   99,650.32x = 7,554,979,321.83
5. Step 5: Solve for x
   x = 7,554,979,321.83/99,650.32
6. Step 6: Final answer
   x = 75,814.90