Finding the Fourth Proportional to 7,251.30, 10,013.31 and 5,479.83

Step by Step Solution

1. Step 1: Write the proportion equation
   7,251.30 : 10,013.31 = 5,479.83 : x
2. Step 2: Convert to fraction form
   7,251.30/10,013.31 = 5,479.83/x
3. Step 3: Cross multiply
   7,251.30x = 10,013.31 × 5,479.83
4. Step 4: Simplify right side
   7,251.30x = 54,871,236.54
5. Step 5: Solve for x
   x = 54,871,236.54/7,251.30
6. Step 6: Final answer
   x = 7,567.09