Finding the Fourth Proportional to 42,461.04, 63,700.82 and 12,881.18

Step by Step Solution

1. Step 1: Write the proportion equation
   42,461.04 : 63,700.82 = 12,881.18 : x
2. Step 2: Convert to fraction form
   42,461.04/63,700.82 = 12,881.18/x
3. Step 3: Cross multiply
   42,461.04x = 63,700.82 × 12,881.18
4. Step 4: Simplify right side
   42,461.04x = 820,541,728.57
5. Step 5: Solve for x
   x = 820,541,728.57/42,461.04
6. Step 6: Final answer
   x = 19,324.58