Finding the Fourth Proportional to 5,591.52, 7,716.28 and 3,107.52

Step by Step Solution

1. Step 1: Write the proportion equation
   5,591.52 : 7,716.28 = 3,107.52 : x
2. Step 2: Convert to fraction form
   5,591.52/7,716.28 = 3,107.52/x
3. Step 3: Cross multiply
   5,591.52x = 7,716.28 × 3,107.52
4. Step 4: Simplify right side
   5,591.52x = 23,978,494.43
5. Step 5: Solve for x
   x = 23,978,494.43/5,591.52
6. Step 6: Final answer
   x = 4,288.37