Finding the Fourth Proportional to 7,328.62, 10,113.46 and 3,971.42

Step by Step Solution

1. Step 1: Write the proportion equation
   7,328.62 : 10,113.46 = 3,971.42 : x
2. Step 2: Convert to fraction form
   7,328.62/10,113.46 = 3,971.42/x
3. Step 3: Cross multiply
   7,328.62x = 10,113.46 × 3,971.42
4. Step 4: Simplify right side
   7,328.62x = 40,164,797.31
5. Step 5: Solve for x
   x = 40,164,797.31/7,328.62
6. Step 6: Final answer
   x = 5,480.54