Finding the Fourth Proportional to 5,959.37, 8,225.55 and 3,969.20

Step by Step Solution

1. Step 1: Write the proportion equation
   5,959.37 : 8,225.55 = 3,969.20 : x
2. Step 2: Convert to fraction form
   5,959.37/8,225.55 = 3,969.20/x
3. Step 3: Cross multiply
   5,959.37x = 8,225.55 × 3,969.20
4. Step 4: Simplify right side
   5,959.37x = 32,648,873.62
5. Step 5: Solve for x
   x = 32,648,873.62/5,959.37
6. Step 6: Final answer
   x = 5,478.58