Finding the Fourth Proportional to 6,143.12, 8,477.28 and 3,348.56

Step by Step Solution

1. Step 1: Write the proportion equation
   6,143.12 : 8,477.28 = 3,348.56 : x
2. Step 2: Convert to fraction form
   6,143.12/8,477.28 = 3,348.56/x
3. Step 3: Cross multiply
   6,143.12x = 8,477.28 × 3,348.56
4. Step 4: Simplify right side
   6,143.12x = 28,386,680.72
5. Step 5: Solve for x
   x = 28,386,680.72/6,143.12
6. Step 6: Final answer
   x = 4,620.89