Finding the Fourth Proportional to 88,380.10, 132,424.35 and 83,131.30

Step by Step Solution

1. Step 1: Write the proportion equation
   88,380.10 : 132,424.35 = 83,131.30 : x
2. Step 2: Convert to fraction form
   88,380.10/132,424.35 = 83,131.30/x
3. Step 3: Cross multiply
   88,380.10x = 132,424.35 × 83,131.30
4. Step 4: Simplify right side
   88,380.10x = 11,008,608,367.16
5. Step 5: Solve for x
   x = 11,008,608,367.16/88,380.10
6. Step 6: Final answer
   x = 124,559.81