Finding the Fourth Proportional to 5,189.89, 7,161.87 and 2,951.73

Step by Step Solution

1. Step 1: Write the proportion equation
   5,189.89 : 7,161.87 = 2,951.73 : x
2. Step 2: Convert to fraction form
   5,189.89/7,161.87 = 2,951.73/x
3. Step 3: Cross multiply
   5,189.89x = 7,161.87 × 2,951.73
4. Step 4: Simplify right side
   5,189.89x = 21,139,906.54
5. Step 5: Solve for x
   x = 21,139,906.54/5,189.89
6. Step 6: Final answer
   x = 4,073.29