Finding the Fourth Proportional to 7,151.16, 9,868.52 and 4,007.28

Step by Step Solution

1. Step 1: Write the proportion equation
   7,151.16 : 9,868.52 = 4,007.28 : x
2. Step 2: Convert to fraction form
   7,151.16/9,868.52 = 4,007.28/x
3. Step 3: Cross multiply
   7,151.16x = 9,868.52 × 4,007.28
4. Step 4: Simplify right side
   7,151.16x = 39,545,922.83
5. Step 5: Solve for x
   x = 39,545,922.83/7,151.16
6. Step 6: Final answer
   x = 5,530.00