Finding the Fourth Proportional to 16,402.06, 24,586.64 and 8,500.15

Step by Step Solution

1. Step 1: Write the proportion equation
   16,402.06 : 24,586.64 = 8,500.15 : x
2. Step 2: Convert to fraction form
   16,402.06/24,586.64 = 8,500.15/x
3. Step 3: Cross multiply
   16,402.06x = 24,586.64 × 8,500.15
4. Step 4: Simplify right side
   16,402.06x = 208,989,962.56
5. Step 5: Solve for x
   x = 208,989,962.56/16,402.06
6. Step 6: Final answer
   x = 12,741.69