Finding the Fourth Proportional to 5,402.25, 7,456.50 and 3,518.53

Step by Step Solution

1. Step 1: Write the proportion equation
   5,402.25 : 7,456.50 = 3,518.53 : x
2. Step 2: Convert to fraction form
   5,402.25/7,456.50 = 3,518.53/x
3. Step 3: Cross multiply
   5,402.25x = 7,456.50 × 3,518.53
4. Step 4: Simplify right side
   5,402.25x = 26,235,910.15
5. Step 5: Solve for x
   x = 26,235,910.15/5,402.25
6. Step 6: Final answer
   x = 4,856.48