Finding the Fourth Proportional to 4,522.57, 6,241.90 and 3,105.10

Step by Step Solution

1. Step 1: Write the proportion equation
   4,522.57 : 6,241.90 = 3,105.10 : x
2. Step 2: Convert to fraction form
   4,522.57/6,241.90 = 3,105.10/x
3. Step 3: Cross multiply
   4,522.57x = 6,241.90 × 3,105.10
4. Step 4: Simplify right side
   4,522.57x = 19,381,727.57
5. Step 5: Solve for x
   x = 19,381,727.57/4,522.57
6. Step 6: Final answer
   x = 4,285.55