Finding the Fourth Proportional to 16,171.85, 24,251.72 and 5,639.16

Step by Step Solution

1. Step 1: Write the proportion equation
   16,171.85 : 24,251.72 = 5,639.16 : x
2. Step 2: Convert to fraction form
   16,171.85/24,251.72 = 5,639.16/x
3. Step 3: Cross multiply
   16,171.85x = 24,251.72 × 5,639.16
4. Step 4: Simplify right side
   16,171.85x = 136,759,392.10
5. Step 5: Solve for x
   x = 136,759,392.10/16,171.85
6. Step 6: Final answer
   x = 8,456.63