Finding the Fourth Proportional to 6,385.20, 9,574.56 and 3,264.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,385.20 : 9,574.56 = 3,264.72 : x
2. Step 2: Convert to fraction form
   6,385.20/9,574.56 = 3,264.72/x
3. Step 3: Cross multiply
   6,385.20x = 9,574.56 × 3,264.72
4. Step 4: Simplify right side
   6,385.20x = 31,258,257.52
5. Step 5: Solve for x
   x = 31,258,257.52/6,385.20
6. Step 6: Final answer
   x = 4,895.42