Finding the Fourth Proportional to 6,141.41, 8,469.20 and 3,899.33

Step by Step Solution

1. Step 1: Write the proportion equation
   6,141.41 : 8,469.20 = 3,899.33 : x
2. Step 2: Convert to fraction form
   6,141.41/8,469.20 = 3,899.33/x
3. Step 3: Cross multiply
   6,141.41x = 8,469.20 × 3,899.33
4. Step 4: Simplify right side
   6,141.41x = 33,024,143.79
5. Step 5: Solve for x
   x = 33,024,143.79/6,141.41
6. Step 6: Final answer
   x = 5,377.29