Finding the Fourth Proportional to 16,472.64, 22,733.52 and 9,401.28

Step by Step Solution

1. Step 1: Write the proportion equation
   16,472.64 : 22,733.52 = 9,401.28 : x
2. Step 2: Convert to fraction form
   16,472.64/22,733.52 = 9,401.28/x
3. Step 3: Cross multiply
   16,472.64x = 22,733.52 × 9,401.28
4. Step 4: Simplify right side
   16,472.64x = 213,724,186.91
5. Step 5: Solve for x
   x = 213,724,186.91/16,472.64
6. Step 6: Final answer
   x = 12,974.50