Finding the Fourth Proportional to 9,531.28, 13,152.54 and 5,338.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,531.28 : 13,152.54 = 5,338.72 : x
2. Step 2: Convert to fraction form
   9,531.28/13,152.54 = 5,338.72/x
3. Step 3: Cross multiply
   9,531.28x = 13,152.54 × 5,338.72
4. Step 4: Simplify right side
   9,531.28x = 70,217,728.35
5. Step 5: Solve for x
   x = 70,217,728.35/9,531.28
6. Step 6: Final answer
   x = 7,367.08