Finding the Fourth Proportional to 5,175.75, 7,142.51 and 2,938.05

Step by Step Solution

1. Step 1: Write the proportion equation
   5,175.75 : 7,142.51 = 2,938.05 : x
2. Step 2: Convert to fraction form
   5,175.75/7,142.51 = 2,938.05/x
3. Step 3: Cross multiply
   5,175.75x = 7,142.51 × 2,938.05
4. Step 4: Simplify right side
   5,175.75x = 20,985,036.82
5. Step 5: Solve for x
   x = 20,985,036.82/5,175.75
6. Step 6: Final answer
   x = 4,054.49