Finding the Fourth Proportional to 6,143.82, 8,478.56 and 3,349.32

Step by Step Solution

1. Step 1: Write the proportion equation
   6,143.82 : 8,478.56 = 3,349.32 : x
2. Step 2: Convert to fraction form
   6,143.82/8,478.56 = 3,349.32/x
3. Step 3: Cross multiply
   6,143.82x = 8,478.56 × 3,349.32
4. Step 4: Simplify right side
   6,143.82x = 28,397,410.58
5. Step 5: Solve for x
   x = 28,397,410.58/6,143.82
6. Step 6: Final answer
   x = 4,622.11