Finding the Fourth Proportional to 16,659.16, 24,980.25 and 5,561.86

Step by Step Solution

1. Step 1: Write the proportion equation
   16,659.16 : 24,980.25 = 5,561.86 : x
2. Step 2: Convert to fraction form
   16,659.16/24,980.25 = 5,561.86/x
3. Step 3: Cross multiply
   16,659.16x = 24,980.25 × 5,561.86
4. Step 4: Simplify right side
   16,659.16x = 138,936,653.27
5. Step 5: Solve for x
   x = 138,936,653.27/16,659.16
6. Step 6: Final answer
   x = 8,339.96