Finding the Fourth Proportional to 5,978.55, 8,250.27 and 3,289.65

Step by Step Solution

1. Step 1: Write the proportion equation
   5,978.55 : 8,250.27 = 3,289.65 : x
2. Step 2: Convert to fraction form
   5,978.55/8,250.27 = 3,289.65/x
3. Step 3: Cross multiply
   5,978.55x = 8,250.27 × 3,289.65
4. Step 4: Simplify right side
   5,978.55x = 27,140,500.71
5. Step 5: Solve for x
   x = 27,140,500.71/5,978.55
6. Step 6: Final answer
   x = 4,539.65