Finding the Fourth Proportional to 88,245.38, 132,366.93 and 21,686.10

Step by Step Solution

1. Step 1: Write the proportion equation
   88,245.38 : 132,366.93 = 21,686.10 : x
2. Step 2: Convert to fraction form
   88,245.38/132,366.93 = 21,686.10/x
3. Step 3: Cross multiply
   88,245.38x = 132,366.93 × 21,686.10
4. Step 4: Simplify right side
   88,245.38x = 2,870,521,902.97
5. Step 5: Solve for x
   x = 2,870,521,902.97/88,245.38
6. Step 6: Final answer
   x = 32,528.86