Finding the Fourth Proportional to 5,175.67, 7,150.78 and 3,610.75

Step by Step Solution

1. Step 1: Write the proportion equation
   5,175.67 : 7,150.78 = 3,610.75 : x
2. Step 2: Convert to fraction form
   5,175.67/7,150.78 = 3,610.75/x
3. Step 3: Cross multiply
   5,175.67x = 7,150.78 × 3,610.75
4. Step 4: Simplify right side
   5,175.67x = 25,819,678.89
5. Step 5: Solve for x
   x = 25,819,678.89/5,175.67
6. Step 6: Final answer
   x = 4,988.66