Finding the Fourth Proportional to 5,196.69, 7,171.89 and 2,958.09

Step by Step Solution

1. Step 1: Write the proportion equation
   5,196.69 : 7,171.89 = 2,958.09 : x
2. Step 2: Convert to fraction form
   5,196.69/7,171.89 = 2,958.09/x
3. Step 3: Cross multiply
   5,196.69x = 7,171.89 × 2,958.09
4. Step 4: Simplify right side
   5,196.69x = 21,215,096.09
5. Step 5: Solve for x
   x = 21,215,096.09/5,196.69
6. Step 6: Final answer
   x = 4,082.42