Finding the Fourth Proportional to 16,456.32, 22,709.82 and 9,382.68

Step by Step Solution

1. Step 1: Write the proportion equation
   16,456.32 : 22,709.82 = 9,382.68 : x
2. Step 2: Convert to fraction form
   16,456.32/22,709.82 = 9,382.68/x
3. Step 3: Cross multiply
   16,456.32x = 22,709.82 × 9,382.68
4. Step 4: Simplify right side
   16,456.32x = 213,078,973.92
5. Step 5: Solve for x
   x = 213,078,973.92/16,456.32
6. Step 6: Final answer
   x = 12,948.15