Finding the Fourth Proportional to 131,978.38, 182,087.36 and 74,612.16

Step by Step Solution

1. Step 1: Write the proportion equation
   131,978.38 : 182,087.36 = 74,612.16 : x
2. Step 2: Convert to fraction form
   131,978.38/182,087.36 = 74,612.16/x
3. Step 3: Cross multiply
   131,978.38x = 182,087.36 × 74,612.16
4. Step 4: Simplify right side
   131,978.38x = 13,585,931,238.30
5. Step 5: Solve for x
   x = 13,585,931,238.30/131,978.38
6. Step 6: Final answer
   x = 102,940.58