Finding the Fourth Proportional to 16,680.52, 23,018.92 and 9,126.76

Step by Step Solution

1. Step 1: Write the proportion equation
   16,680.52 : 23,018.92 = 9,126.76 : x
2. Step 2: Convert to fraction form
   16,680.52/23,018.92 = 9,126.76/x
3. Step 3: Cross multiply
   16,680.52x = 23,018.92 × 9,126.76
4. Step 4: Simplify right side
   16,680.52x = 210,088,158.30
5. Step 5: Solve for x
   x = 210,088,158.30/16,680.52
6. Step 6: Final answer
   x = 12,594.82