Finding the Fourth Proportional to 95,687.78, 132,026.61 and 80,432.31

Step by Step Solution

1. Step 1: Write the proportion equation
   95,687.78 : 132,026.61 = 80,432.31 : x
2. Step 2: Convert to fraction form
   95,687.78/132,026.61 = 80,432.31/x
3. Step 3: Cross multiply
   95,687.78x = 132,026.61 × 80,432.31
4. Step 4: Simplify right side
   95,687.78x = 10,619,205,223.77
5. Step 5: Solve for x
   x = 10,619,205,223.77/95,687.78
6. Step 6: Final answer
   x = 110,977.66