Finding the Fourth Proportional to 16,509.92, 22,783.90 and 8,956.30

Step by Step Solution

1. Step 1: Write the proportion equation
   16,509.92 : 22,783.90 = 8,956.30 : x
2. Step 2: Convert to fraction form
   16,509.92/22,783.90 = 8,956.30/x
3. Step 3: Cross multiply
   16,509.92x = 22,783.90 × 8,956.30
4. Step 4: Simplify right side
   16,509.92x = 204,059,443.57
5. Step 5: Solve for x
   x = 204,059,443.57/16,509.92
6. Step 6: Final answer
   x = 12,359.81