Finding the Fourth Proportional to 5,196.54, 7,171.26 and 2,958.30

Step by Step Solution

1. Step 1: Write the proportion equation
   5,196.54 : 7,171.26 = 2,958.30 : x
2. Step 2: Convert to fraction form
   5,196.54/7,171.26 = 2,958.30/x
3. Step 3: Cross multiply
   5,196.54x = 7,171.26 × 2,958.30
4. Step 4: Simplify right side
   5,196.54x = 21,214,738.46
5. Step 5: Solve for x
   x = 21,214,738.46/5,196.54
6. Step 6: Final answer
   x = 4,082.47