Finding the Fourth Proportional to 88,086.60, 132,389.10 and 76,681.80

Step by Step Solution

1. Step 1: Write the proportion equation
   88,086.60 : 132,389.10 = 76,681.80 : x
2. Step 2: Convert to fraction form
   88,086.60/132,389.10 = 76,681.80/x
3. Step 3: Cross multiply
   88,086.60x = 132,389.10 × 76,681.80
4. Step 4: Simplify right side
   88,086.60x = 10,151,834,488.38
5. Step 5: Solve for x
   x = 10,151,834,488.38/88,086.60
6. Step 6: Final answer
   x = 115,248.34