Finding the Fourth Proportional to 80,180.24, 120,139.02 and 42,700.52

Step by Step Solution

1. Step 1: Write the proportion equation
   80,180.24 : 120,139.02 = 42,700.52 : x
2. Step 2: Convert to fraction form
   80,180.24/120,139.02 = 42,700.52/x
3. Step 3: Cross multiply
   80,180.24x = 120,139.02 × 42,700.52
4. Step 4: Simplify right side
   80,180.24x = 5,129,998,626.29
5. Step 5: Solve for x
   x = 5,129,998,626.29/80,180.24
6. Step 6: Final answer
   x = 63,980.83