Finding the Fourth Proportional to 4,216.77, 6,311.25 and 3,289.59

Step by Step Solution

1. Step 1: Write the proportion equation
   4,216.77 : 6,311.25 = 3,289.59 : x
2. Step 2: Convert to fraction form
   4,216.77/6,311.25 = 3,289.59/x
3. Step 3: Cross multiply
   4,216.77x = 6,311.25 × 3,289.59
4. Step 4: Simplify right side
   4,216.77x = 20,761,424.89
5. Step 5: Solve for x
   x = 20,761,424.89/4,216.77
6. Step 6: Final answer
   x = 4,923.54