Finding the Fourth Proportional to 42,513.96, 63,766.53 and 12,932.10

Step by Step Solution

1. Step 1: Write the proportion equation
   42,513.96 : 63,766.53 = 12,932.10 : x
2. Step 2: Convert to fraction form
   42,513.96/63,766.53 = 12,932.10/x
3. Step 3: Cross multiply
   42,513.96x = 63,766.53 × 12,932.10
4. Step 4: Simplify right side
   42,513.96x = 824,635,142.61
5. Step 5: Solve for x
   x = 824,635,142.61/42,513.96
6. Step 6: Final answer
   x = 19,396.81