Finding the Fourth Proportional to 6,020.43, 8,311.98 and 3,896.91

Step by Step Solution

1. Step 1: Write the proportion equation
   6,020.43 : 8,311.98 = 3,896.91 : x
2. Step 2: Convert to fraction form
   6,020.43/8,311.98 = 3,896.91/x
3. Step 3: Cross multiply
   6,020.43x = 8,311.98 × 3,896.91
4. Step 4: Simplify right side
   6,020.43x = 32,391,037.98
5. Step 5: Solve for x
   x = 32,391,037.98/6,020.43
6. Step 6: Final answer
   x = 5,380.19