Finding the Fourth Proportional to 42,414.50, 63,623.88 and 16,121.30

Step by Step Solution

1. Step 1: Write the proportion equation
   42,414.50 : 63,623.88 = 16,121.30 : x
2. Step 2: Convert to fraction form
   42,414.50/63,623.88 = 16,121.30/x
3. Step 3: Cross multiply
   42,414.50x = 63,623.88 × 16,121.30
4. Step 4: Simplify right side
   42,414.50x = 1,025,699,338.52
5. Step 5: Solve for x
   x = 1,025,699,338.52/42,414.50
6. Step 6: Final answer
   x = 24,182.75