Finding the Fourth Proportional to 6,078.38, 8,388.24 and 3,425.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,078.38 : 8,388.24 = 3,425.72 : x
2. Step 2: Convert to fraction form
   6,078.38/8,388.24 = 3,425.72/x
3. Step 3: Cross multiply
   6,078.38x = 8,388.24 × 3,425.72
4. Step 4: Simplify right side
   6,078.38x = 28,735,761.53
5. Step 5: Solve for x
   x = 28,735,761.53/6,078.38
6. Step 6: Final answer
   x = 4,727.54