Finding the Fourth Proportional to 131,978.57, 182,087.61 and 74,612.36

Step by Step Solution

1. Step 1: Write the proportion equation
   131,978.57 : 182,087.61 = 74,612.36 : x
2. Step 2: Convert to fraction form
   131,978.57/182,087.61 = 74,612.36/x
3. Step 3: Cross multiply
   131,978.57x = 182,087.61 × 74,612.36
4. Step 4: Simplify right side
   131,978.57x = 13,585,986,308.86
5. Step 5: Solve for x
   x = 13,585,986,308.86/131,978.57
6. Step 6: Final answer
   x = 102,940.85