Finding the Fourth Proportional to 6,469.88, 8,928.43 and 3,817.28

Step by Step Solution

1. Step 1: Write the proportion equation
   6,469.88 : 8,928.43 = 3,817.28 : x
2. Step 2: Convert to fraction form
   6,469.88/8,928.43 = 3,817.28/x
3. Step 3: Cross multiply
   6,469.88x = 8,928.43 × 3,817.28
4. Step 4: Simplify right side
   6,469.88x = 34,082,336.33
5. Step 5: Solve for x
   x = 34,082,336.33/6,469.88
6. Step 6: Final answer
   x = 5,267.85