Finding the Fourth Proportional to 42,426.30, 63,329.29 and 39,342.54

Step by Step Solution

1. Step 1: Write the proportion equation
   42,426.30 : 63,329.29 = 39,342.54 : x
2. Step 2: Convert to fraction form
   42,426.30/63,329.29 = 39,342.54/x
3. Step 3: Cross multiply
   42,426.30x = 63,329.29 × 39,342.54
4. Step 4: Simplify right side
   42,426.30x = 2,491,535,125.00
5. Step 5: Solve for x
   x = 2,491,535,125.00/42,426.30
6. Step 6: Final answer
   x = 58,726.19