Finding the Fourth Proportional to 88,247.38, 132,369.93 and 21,688.10

Step by Step Solution

1. Step 1: Write the proportion equation
   88,247.38 : 132,369.93 = 21,688.10 : x
2. Step 2: Convert to fraction form
   88,247.38/132,369.93 = 21,688.10/x
3. Step 3: Cross multiply
   88,247.38x = 132,369.93 × 21,688.10
4. Step 4: Simplify right side
   88,247.38x = 2,870,852,278.83
5. Step 5: Solve for x
   x = 2,870,852,278.83/88,247.38
6. Step 6: Final answer
   x = 32,531.87