Finding the Fourth Proportional to 16,494.91, 24,708.85 and 13,168.78

Step by Step Solution

1. Step 1: Write the proportion equation
   16,494.91 : 24,708.85 = 13,168.78 : x
2. Step 2: Convert to fraction form
   16,494.91/24,708.85 = 13,168.78/x
3. Step 3: Cross multiply
   16,494.91x = 24,708.85 × 13,168.78
4. Step 4: Simplify right side
   16,494.91x = 325,385,315.01
5. Step 5: Solve for x
   x = 325,385,315.01/16,494.91
6. Step 6: Final answer
   x = 19,726.41