Finding the Fourth Proportional to 4,131.95, 5,704.31 and 3,185.67

Step by Step Solution

1. Step 1: Write the proportion equation
   4,131.95 : 5,704.31 = 3,185.67 : x
2. Step 2: Convert to fraction form
   4,131.95/5,704.31 = 3,185.67/x
3. Step 3: Cross multiply
   4,131.95x = 5,704.31 × 3,185.67
4. Step 4: Simplify right side
   4,131.95x = 18,172,020.72
5. Step 5: Solve for x
   x = 18,172,020.72/4,131.95
6. Step 6: Final answer
   x = 4,397.93