Finding the Fourth Proportional to 4,388.50, 6,059.37 and 3,211.30

Step by Step Solution

1. Step 1: Write the proportion equation
   4,388.50 : 6,059.37 = 3,211.30 : x
2. Step 2: Convert to fraction form
   4,388.50/6,059.37 = 3,211.30/x
3. Step 3: Cross multiply
   4,388.50x = 6,059.37 × 3,211.30
4. Step 4: Simplify right side
   4,388.50x = 19,458,454.88
5. Step 5: Solve for x
   x = 19,458,454.88/4,388.50
6. Step 6: Final answer
   x = 4,433.96