Finding the Fourth Proportional to 88,160.07, 131,947.59 and 80,280.72

Step by Step Solution

1. Step 1: Write the proportion equation
   88,160.07 : 131,947.59 = 80,280.72 : x
2. Step 2: Convert to fraction form
   88,160.07/131,947.59 = 80,280.72/x
3. Step 3: Cross multiply
   88,160.07x = 131,947.59 × 80,280.72
4. Step 4: Simplify right side
   88,160.07x = 10,592,847,527.46
5. Step 5: Solve for x
   x = 10,592,847,527.46/88,160.07
6. Step 6: Final answer
   x = 120,154.71