Finding the Fourth Proportional to 16,475.46, 24,825.62 and 13,617.78

Step by Step Solution

1. Step 1: Write the proportion equation
   16,475.46 : 24,825.62 = 13,617.78 : x
2. Step 2: Convert to fraction form
   16,475.46/24,825.62 = 13,617.78/x
3. Step 3: Cross multiply
   16,475.46x = 24,825.62 × 13,617.78
4. Step 4: Simplify right side
   16,475.46x = 338,069,763.43
5. Step 5: Solve for x
   x = 338,069,763.43/16,475.46
6. Step 6: Final answer
   x = 20,519.59