Finding the Fourth Proportional to 7,321.72, 10,103.96 and 3,964.52

Step by Step Solution

1. Step 1: Write the proportion equation
   7,321.72 : 10,103.96 = 3,964.52 : x
2. Step 2: Convert to fraction form
   7,321.72/10,103.96 = 3,964.52/x
3. Step 3: Cross multiply
   7,321.72x = 10,103.96 × 3,964.52
4. Step 4: Simplify right side
   7,321.72x = 40,057,351.50
5. Step 5: Solve for x
   x = 40,057,351.50/7,321.72
6. Step 6: Final answer
   x = 5,471.03