Finding the Fourth Proportional to 88,434.72, 132,943.68 and 81,941.76

Step by Step Solution

1. Step 1: Write the proportion equation
   88,434.72 : 132,943.68 = 81,941.76 : x
2. Step 2: Convert to fraction form
   88,434.72/132,943.68 = 81,941.76/x
3. Step 3: Cross multiply
   88,434.72x = 132,943.68 × 81,941.76
4. Step 4: Simplify right side
   88,434.72x = 10,893,639,120.08
5. Step 5: Solve for x
   x = 10,893,639,120.08/88,434.72
6. Step 6: Final answer
   x = 123,182.83