Finding the Fourth Proportional to 5,079.39, 7,011.50 and 3,311.43

Step by Step Solution

1. Step 1: Write the proportion equation
   5,079.39 : 7,011.50 = 3,311.43 : x
2. Step 2: Convert to fraction form
   5,079.39/7,011.50 = 3,311.43/x
3. Step 3: Cross multiply
   5,079.39x = 7,011.50 × 3,311.43
4. Step 4: Simplify right side
   5,079.39x = 23,218,074.89
5. Step 5: Solve for x
   x = 23,218,074.89/5,079.39
6. Step 6: Final answer
   x = 4,571.04