Finding the Fourth Proportional to 6,128.46, 8,454.74 and 4,003.25

Step by Step Solution

1. Step 1: Write the proportion equation
   6,128.46 : 8,454.74 = 4,003.25 : x
2. Step 2: Convert to fraction form
   6,128.46/8,454.74 = 4,003.25/x
3. Step 3: Cross multiply
   6,128.46x = 8,454.74 × 4,003.25
4. Step 4: Simplify right side
   6,128.46x = 33,846,469.05
5. Step 5: Solve for x
   x = 33,846,469.05/6,128.46
6. Step 6: Final answer
   x = 5,522.83