Finding the Fourth Proportional to 9,423.28, 13,004.56 and 5,231.52

Step by Step Solution

1. Step 1: Write the proportion equation
   9,423.28 : 13,004.56 = 5,231.52 : x
2. Step 2: Convert to fraction form
   9,423.28/13,004.56 = 5,231.52/x
3. Step 3: Cross multiply
   9,423.28x = 13,004.56 × 5,231.52
4. Step 4: Simplify right side
   9,423.28x = 68,033,615.73
5. Step 5: Solve for x
   x = 68,033,615.73/9,423.28
6. Step 6: Final answer
   x = 7,219.74