Finding the Fourth Proportional to 16,328.40, 24,480.60 and 5,228.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,328.40 : 24,480.60 = 5,228.72 : x
2. Step 2: Convert to fraction form
   16,328.40/24,480.60 = 5,228.72/x
3. Step 3: Cross multiply
   16,328.40x = 24,480.60 × 5,228.72
4. Step 4: Simplify right side
   16,328.40x = 128,002,202.83
5. Step 5: Solve for x
   x = 128,002,202.83/16,328.40
6. Step 6: Final answer
   x = 7,839.24