Finding the Fourth Proportional to 42,046.80, 63,073.82 and 12,061.20

Step by Step Solution

1. Step 1: Write the proportion equation
   42,046.80 : 63,073.82 = 12,061.20 : x
2. Step 2: Convert to fraction form
   42,046.80/63,073.82 = 12,061.20/x
3. Step 3: Cross multiply
   42,046.80x = 63,073.82 × 12,061.20
4. Step 4: Simplify right side
   42,046.80x = 760,745,957.78
5. Step 5: Solve for x
   x = 760,745,957.78/42,046.80
6. Step 6: Final answer
   x = 18,092.84