Finding the Fourth Proportional to 80,280.42, 120,385.71 and 42,832.14

Step by Step Solution

1. Step 1: Write the proportion equation
   80,280.42 : 120,385.71 = 42,832.14 : x
2. Step 2: Convert to fraction form
   80,280.42/120,385.71 = 42,832.14/x
3. Step 3: Cross multiply
   80,280.42x = 120,385.71 × 42,832.14
4. Step 4: Simplify right side
   80,280.42x = 5,156,377,584.72
5. Step 5: Solve for x
   x = 5,156,377,584.72/80,280.42
6. Step 6: Final answer
   x = 64,229.58