Finding the Fourth Proportional to 6,304.28, 8,697.72 and 3,787.20

Step by Step Solution

1. Step 1: Write the proportion equation
   6,304.28 : 8,697.72 = 3,787.20 : x
2. Step 2: Convert to fraction form
   6,304.28/8,697.72 = 3,787.20/x
3. Step 3: Cross multiply
   6,304.28x = 8,697.72 × 3,787.20
4. Step 4: Simplify right side
   6,304.28x = 32,940,005.18
5. Step 5: Solve for x
   x = 32,940,005.18/6,304.28
6. Step 6: Final answer
   x = 5,225.03