Finding the Fourth Proportional to 16,776.45, 23,151.96 and 9,223.10

Step by Step Solution

1. Step 1: Write the proportion equation
   16,776.45 : 23,151.96 = 9,223.10 : x
2. Step 2: Convert to fraction form
   16,776.45/23,151.96 = 9,223.10/x
3. Step 3: Cross multiply
   16,776.45x = 23,151.96 × 9,223.10
4. Step 4: Simplify right side
   16,776.45x = 213,532,891.55
5. Step 5: Solve for x
   x = 213,532,891.55/16,776.45
6. Step 6: Final answer
   x = 12,728.13