Finding the Fourth Proportional to 5,171.89, 7,137.57 and 2,933.79

Step by Step Solution

1. Step 1: Write the proportion equation
   5,171.89 : 7,137.57 = 2,933.79 : x
2. Step 2: Convert to fraction form
   5,171.89/7,137.57 = 2,933.79/x
3. Step 3: Cross multiply
   5,171.89x = 7,137.57 × 2,933.79
4. Step 4: Simplify right side
   5,171.89x = 20,940,099.22
5. Step 5: Solve for x
   x = 20,940,099.22/5,171.89
6. Step 6: Final answer
   x = 4,048.83