Finding the Fourth Proportional to 16,510.72, 22,783.68 and 9,059.20

Step by Step Solution

1. Step 1: Write the proportion equation
   16,510.72 : 22,783.68 = 9,059.20 : x
2. Step 2: Convert to fraction form
   16,510.72/22,783.68 = 9,059.20/x
3. Step 3: Cross multiply
   16,510.72x = 22,783.68 × 9,059.20
4. Step 4: Simplify right side
   16,510.72x = 206,401,913.86
5. Step 5: Solve for x
   x = 206,401,913.86/16,510.72
6. Step 6: Final answer
   x = 12,501.08