Finding the Fourth Proportional to 6,108.76, 8,430.42 and 3,456.28

Step by Step Solution

1. Step 1: Write the proportion equation
   6,108.76 : 8,430.42 = 3,456.28 : x
2. Step 2: Convert to fraction form
   6,108.76/8,430.42 = 3,456.28/x
3. Step 3: Cross multiply
   6,108.76x = 8,430.42 × 3,456.28
4. Step 4: Simplify right side
   6,108.76x = 29,137,892.04
5. Step 5: Solve for x
   x = 29,137,892.04/6,108.76
6. Step 6: Final answer
   x = 4,769.85