Finding the Fourth Proportional to 7,321.47, 10,103.62 and 3,964.29

Step by Step Solution

1. Step 1: Write the proportion equation
   7,321.47 : 10,103.62 = 3,964.29 : x
2. Step 2: Convert to fraction form
   7,321.47/10,103.62 = 3,964.29/x
3. Step 3: Cross multiply
   7,321.47x = 10,103.62 × 3,964.29
4. Step 4: Simplify right side
   7,321.47x = 40,053,634.65
5. Step 5: Solve for x
   x = 40,053,634.65/7,321.47
6. Step 6: Final answer
   x = 5,470.71