Finding the Fourth Proportional to 7,320.72, 10,102.56 and 3,963.52

Step by Step Solution

1. Step 1: Write the proportion equation
   7,320.72 : 10,102.56 = 3,963.52 : x
2. Step 2: Convert to fraction form
   7,320.72/10,102.56 = 3,963.52/x
3. Step 3: Cross multiply
   7,320.72x = 10,102.56 × 3,963.52
4. Step 4: Simplify right side
   7,320.72x = 40,041,698.61
5. Step 5: Solve for x
   x = 40,041,698.61/7,320.72
6. Step 6: Final answer
   x = 5,469.64