Finding the Fourth Proportional to 16,456.76, 22,709.92 and 9,382.76

Step by Step Solution

1. Step 1: Write the proportion equation
   16,456.76 : 22,709.92 = 9,382.76 : x
2. Step 2: Convert to fraction form
   16,456.76/22,709.92 = 9,382.76/x
3. Step 3: Cross multiply
   16,456.76x = 22,709.92 × 9,382.76
4. Step 4: Simplify right side
   16,456.76x = 213,081,568.52
5. Step 5: Solve for x
   x = 213,081,568.52/16,456.76
6. Step 6: Final answer
   x = 12,947.97