Finding the Fourth Proportional to 16,402.56, 24,587.38 and 8,500.65

Step by Step Solution

1. Step 1: Write the proportion equation
   16,402.56 : 24,587.38 = 8,500.65 : x
2. Step 2: Convert to fraction form
   16,402.56/24,587.38 = 8,500.65/x
3. Step 3: Cross multiply
   16,402.56x = 24,587.38 × 8,500.65
4. Step 4: Simplify right side
   16,402.56x = 209,008,711.80
5. Step 5: Solve for x
   x = 209,008,711.80/16,402.56
6. Step 6: Final answer
   x = 12,742.44