Finding the Fourth Proportional to 4,880.34, 7,311.69 and 4,105.17

Step by Step Solution

1. Step 1: Write the proportion equation
   4,880.34 : 7,311.69 = 4,105.17 : x
2. Step 2: Convert to fraction form
   4,880.34/7,311.69 = 4,105.17/x
3. Step 3: Cross multiply
   4,880.34x = 7,311.69 × 4,105.17
4. Step 4: Simplify right side
   4,880.34x = 30,015,730.44
5. Step 5: Solve for x
   x = 30,015,730.44/4,880.34
6. Step 6: Final answer
   x = 6,150.34