Finding the Fourth Proportional to 6,568.74, 9,061.38 and 3,915.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,568.74 : 9,061.38 = 3,915.72 : x
2. Step 2: Convert to fraction form
   6,568.74/9,061.38 = 3,915.72/x
3. Step 3: Cross multiply
   6,568.74x = 9,061.38 × 3,915.72
4. Step 4: Simplify right side
   6,568.74x = 35,481,826.89
5. Step 5: Solve for x
   x = 35,481,826.89/6,568.74
6. Step 6: Final answer
   x = 5,401.62