Finding the Fourth Proportional to 42,658.17, 63,993.71 and 14,571.60

Step by Step Solution

1. Step 1: Write the proportion equation
   42,658.17 : 63,993.71 = 14,571.60 : x
2. Step 2: Convert to fraction form
   42,658.17/63,993.71 = 14,571.60/x
3. Step 3: Cross multiply
   42,658.17x = 63,993.71 × 14,571.60
4. Step 4: Simplify right side
   42,658.17x = 932,490,744.64
5. Step 5: Solve for x
   x = 932,490,744.64/42,658.17
6. Step 6: Final answer
   x = 21,859.60