Finding the Fourth Proportional to 88,085.10, 132,386.85 and 76,680.30

Step by Step Solution

1. Step 1: Write the proportion equation
   88,085.10 : 132,386.85 = 76,680.30 : x
2. Step 2: Convert to fraction form
   88,085.10/132,386.85 = 76,680.30/x
3. Step 3: Cross multiply
   88,085.10x = 132,386.85 × 76,680.30
4. Step 4: Simplify right side
   88,085.10x = 10,151,463,374.06
5. Step 5: Solve for x
   x = 10,151,463,374.06/88,085.10
6. Step 6: Final answer
   x = 115,246.09