Finding the Fourth Proportional to 5,174.73, 7,142.73 and 2,938.09

Step by Step Solution

1. Step 1: Write the proportion equation
   5,174.73 : 7,142.73 = 2,938.09 : x
2. Step 2: Convert to fraction form
   5,174.73/7,142.73 = 2,938.09/x
3. Step 3: Cross multiply
   5,174.73x = 7,142.73 × 2,938.09
4. Step 4: Simplify right side
   5,174.73x = 20,985,983.59
5. Step 5: Solve for x
   x = 20,985,983.59/5,174.73
6. Step 6: Final answer
   x = 4,055.47