Finding the Fourth Proportional to 5,023.16, 7,531.98 and 3,989.78

Step by Step Solution

1. Step 1: Write the proportion equation
   5,023.16 : 7,531.98 = 3,989.78 : x
2. Step 2: Convert to fraction form
   5,023.16/7,531.98 = 3,989.78/x
3. Step 3: Cross multiply
   5,023.16x = 7,531.98 × 3,989.78
4. Step 4: Simplify right side
   5,023.16x = 30,050,943.16
5. Step 5: Solve for x
   x = 30,050,943.16/5,023.16
6. Step 6: Final answer
   x = 5,982.48