Finding the Fourth Proportional to 6,143.89, 8,478.59 and 3,349.39

Step by Step Solution

1. Step 1: Write the proportion equation
   6,143.89 : 8,478.59 = 3,349.39 : x
2. Step 2: Convert to fraction form
   6,143.89/8,478.59 = 3,349.39/x
3. Step 3: Cross multiply
   6,143.89x = 8,478.59 × 3,349.39
4. Step 4: Simplify right side
   6,143.89x = 28,398,104.56
5. Step 5: Solve for x
   x = 28,398,104.56/6,143.89
6. Step 6: Final answer
   x = 4,622.17