Finding the Fourth Proportional to 5,589.50, 7,713.54 and 3,105.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,589.50 : 7,713.54 = 3,105.50 : x
2. Step 2: Convert to fraction form
   5,589.50/7,713.54 = 3,105.50/x
3. Step 3: Cross multiply
   5,589.50x = 7,713.54 × 3,105.50
4. Step 4: Simplify right side
   5,589.50x = 23,954,398.47
5. Step 5: Solve for x
   x = 23,954,398.47/5,589.50
6. Step 6: Final answer
   x = 4,285.61