Finding the Fourth Proportional to 5,519.57, 7,609.55 and 3,748.10

Step by Step Solution

1. Step 1: Write the proportion equation
   5,519.57 : 7,609.55 = 3,748.10 : x
2. Step 2: Convert to fraction form
   5,519.57/7,609.55 = 3,748.10/x
3. Step 3: Cross multiply
   5,519.57x = 7,609.55 × 3,748.10
4. Step 4: Simplify right side
   5,519.57x = 28,521,335.61
5. Step 5: Solve for x
   x = 28,521,335.61/5,519.57
6. Step 6: Final answer
   x = 5,167.31