Finding the Fourth Proportional to 7,321.56, 10,103.71 and 3,964.34

Step by Step Solution

1. Step 1: Write the proportion equation
   7,321.56 : 10,103.71 = 3,964.34 : x
2. Step 2: Convert to fraction form
   7,321.56/10,103.71 = 3,964.34/x
3. Step 3: Cross multiply
   7,321.56x = 10,103.71 × 3,964.34
4. Step 4: Simplify right side
   7,321.56x = 40,054,541.70
5. Step 5: Solve for x
   x = 40,054,541.70/7,321.56
6. Step 6: Final answer
   x = 5,470.77