Finding the Fourth Proportional to 131,086.40, 196,505.02 and 83,568.10

Step by Step Solution

1. Step 1: Write the proportion equation
   131,086.40 : 196,505.02 = 83,568.10 : x
2. Step 2: Convert to fraction form
   131,086.40/196,505.02 = 83,568.10/x
3. Step 3: Cross multiply
   131,086.40x = 196,505.02 × 83,568.10
4. Step 4: Simplify right side
   131,086.40x = 16,421,551,161.86
5. Step 5: Solve for x
   x = 16,421,551,161.86/131,086.40
6. Step 6: Final answer
   x = 125,272.73