Finding the Fourth Proportional to 6,747.32, 9,311.33 and 3,915.25

Step by Step Solution

1. Step 1: Write the proportion equation
   6,747.32 : 9,311.33 = 3,915.25 : x
2. Step 2: Convert to fraction form
   6,747.32/9,311.33 = 3,915.25/x
3. Step 3: Cross multiply
   6,747.32x = 9,311.33 × 3,915.25
4. Step 4: Simplify right side
   6,747.32x = 36,456,171.29
5. Step 5: Solve for x
   x = 36,456,171.29/6,747.32
6. Step 6: Final answer
   x = 5,403.06