Finding the Fourth Proportional to 6,143.15, 8,477.78 and 3,348.65

Step by Step Solution

1. Step 1: Write the proportion equation
   6,143.15 : 8,477.78 = 3,348.65 : x
2. Step 2: Convert to fraction form
   6,143.15/8,477.78 = 3,348.65/x
3. Step 3: Cross multiply
   6,143.15x = 8,477.78 × 3,348.65
4. Step 4: Simplify right side
   6,143.15x = 28,389,058.86
5. Step 5: Solve for x
   x = 28,389,058.86/6,143.15
6. Step 6: Final answer
   x = 4,621.26