Finding the Fourth Proportional to 16,653.60, 24,978.12 and 5,560.04

Step by Step Solution

1. Step 1: Write the proportion equation
   16,653.60 : 24,978.12 = 5,560.04 : x
2. Step 2: Convert to fraction form
   16,653.60/24,978.12 = 5,560.04/x
3. Step 3: Cross multiply
   16,653.60x = 24,978.12 × 5,560.04
4. Step 4: Simplify right side
   16,653.60x = 138,879,346.32
5. Step 5: Solve for x
   x = 138,879,346.32/16,653.60
6. Step 6: Final answer
   x = 8,339.30