Finding the Fourth Proportional to 5,251.69, 7,247.33 and 3,155.81

Step by Step Solution

1. Step 1: Write the proportion equation
   5,251.69 : 7,247.33 = 3,155.81 : x
2. Step 2: Convert to fraction form
   5,251.69/7,247.33 = 3,155.81/x
3. Step 3: Cross multiply
   5,251.69x = 7,247.33 × 3,155.81
4. Step 4: Simplify right side
   5,251.69x = 22,871,222.50
5. Step 5: Solve for x
   x = 22,871,222.50/5,251.69
6. Step 6: Final answer
   x = 4,355.02