Finding the Fourth Proportional to 16,686.20, 23,025.98 and 9,132.67

Step by Step Solution

1. Step 1: Write the proportion equation
   16,686.20 : 23,025.98 = 9,132.67 : x
2. Step 2: Convert to fraction form
   16,686.20/23,025.98 = 9,132.67/x
3. Step 3: Cross multiply
   16,686.20x = 23,025.98 × 9,132.67
4. Step 4: Simplify right side
   16,686.20x = 210,288,805.98
5. Step 5: Solve for x
   x = 210,288,805.98/16,686.20
6. Step 6: Final answer
   x = 12,602.56