Finding the Fourth Proportional to 9,417.28, 12,996.24 and 5,225.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,417.28 : 12,996.24 = 5,225.56 : x
2. Step 2: Convert to fraction form
   9,417.28/12,996.24 = 5,225.56/x
3. Step 3: Cross multiply
   9,417.28x = 12,996.24 × 5,225.56
4. Step 4: Simplify right side
   9,417.28x = 67,912,631.89
5. Step 5: Solve for x
   x = 67,912,631.89/9,417.28
6. Step 6: Final answer
   x = 7,211.49