Finding the Fourth Proportional to 6,108.13, 8,428.98 and 3,456.09

Step by Step Solution

1. Step 1: Write the proportion equation
   6,108.13 : 8,428.98 = 3,456.09 : x
2. Step 2: Convert to fraction form
   6,108.13/8,428.98 = 3,456.09/x
3. Step 3: Cross multiply
   6,108.13x = 8,428.98 × 3,456.09
4. Step 4: Simplify right side
   6,108.13x = 29,131,300.53
5. Step 5: Solve for x
   x = 29,131,300.53/6,108.13
6. Step 6: Final answer
   x = 4,769.27