Finding the Fourth Proportional to 42,092.43, 63,142.03 and 12,510.28

Step by Step Solution

1. Step 1: Write the proportion equation
   42,092.43 : 63,142.03 = 12,510.28 : x
2. Step 2: Convert to fraction form
   42,092.43/63,142.03 = 12,510.28/x
3. Step 3: Cross multiply
   42,092.43x = 63,142.03 × 12,510.28
4. Step 4: Simplify right side
   42,092.43x = 789,924,569.63
5. Step 5: Solve for x
   x = 789,924,569.63/42,092.43
6. Step 6: Final answer
   x = 18,766.43