Finding the Fourth Proportional to 16,264.72, 22,446.24 and 9,191.76

Step by Step Solution

1. Step 1: Write the proportion equation
   16,264.72 : 22,446.24 = 9,191.76 : x
2. Step 2: Convert to fraction form
   16,264.72/22,446.24 = 9,191.76/x
3. Step 3: Cross multiply
   16,264.72x = 22,446.24 × 9,191.76
4. Step 4: Simplify right side
   16,264.72x = 206,320,450.98
5. Step 5: Solve for x
   x = 206,320,450.98/16,264.72
6. Step 6: Final answer
   x = 12,685.15