Finding the Fourth Proportional to 16,232.56, 22,401.72 and 9,945.28

Step by Step Solution

1. Step 1: Write the proportion equation
   16,232.56 : 22,401.72 = 9,945.28 : x
2. Step 2: Convert to fraction form
   16,232.56/22,401.72 = 9,945.28/x
3. Step 3: Cross multiply
   16,232.56x = 22,401.72 × 9,945.28
4. Step 4: Simplify right side
   16,232.56x = 222,791,377.88
5. Step 5: Solve for x
   x = 222,791,377.88/16,232.56
6. Step 6: Final answer
   x = 13,724.97