Finding the Fourth Proportional to 103,086.96, 142,546.32 and 81,829.32

Step by Step Solution

1. Step 1: Write the proportion equation
   103,086.96 : 142,546.32 = 81,829.32 : x
2. Step 2: Convert to fraction form
   103,086.96/142,546.32 = 81,829.32/x
3. Step 3: Cross multiply
   103,086.96x = 142,546.32 × 81,829.32
4. Step 4: Simplify right side
   103,086.96x = 11,664,468,434.10
5. Step 5: Solve for x
   x = 11,664,468,434.10/103,086.96
6. Step 6: Final answer
   x = 113,151.74