Finding the Fourth Proportional to 3,959.59, 5,468.89 and 3,165.67

Step by Step Solution

1. Step 1: Write the proportion equation
   3,959.59 : 5,468.89 = 3,165.67 : x
2. Step 2: Convert to fraction form
   3,959.59/5,468.89 = 3,165.67/x
3. Step 3: Cross multiply
   3,959.59x = 5,468.89 × 3,165.67
4. Step 4: Simplify right side
   3,959.59x = 17,312,679.42
5. Step 5: Solve for x
   x = 17,312,679.42/3,959.59
6. Step 6: Final answer
   x = 4,372.34