Finding the Fourth Proportional to 6,142.78, 8,477.04 and 3,348.28

Step by Step Solution

1. Step 1: Write the proportion equation
   6,142.78 : 8,477.04 = 3,348.28 : x
2. Step 2: Convert to fraction form
   6,142.78/8,477.04 = 3,348.28/x
3. Step 3: Cross multiply
   6,142.78x = 8,477.04 × 3,348.28
4. Step 4: Simplify right side
   6,142.78x = 28,383,526.64
5. Step 5: Solve for x
   x = 28,383,526.64/6,142.78
6. Step 6: Final answer
   x = 4,620.63