Finding the Fourth Proportional to 5,085.43, 7,018.16 and 3,196.31

Step by Step Solution

1. Step 1: Write the proportion equation
   5,085.43 : 7,018.16 = 3,196.31 : x
2. Step 2: Convert to fraction form
   5,085.43/7,018.16 = 3,196.31/x
3. Step 3: Cross multiply
   5,085.43x = 7,018.16 × 3,196.31
4. Step 4: Simplify right side
   5,085.43x = 22,432,163.92
5. Step 5: Solve for x
   x = 22,432,163.92/5,085.43
6. Step 6: Final answer
   x = 4,411.07