Finding the Fourth Proportional to 17,168.75, 25,769.73 and 8,290.31

Step by Step Solution

1. Step 1: Write the proportion equation
   17,168.75 : 25,769.73 = 8,290.31 : x
2. Step 2: Convert to fraction form
   17,168.75/25,769.73 = 8,290.31/x
3. Step 3: Cross multiply
   17,168.75x = 25,769.73 × 8,290.31
4. Step 4: Simplify right side
   17,168.75x = 213,638,952.56
5. Step 5: Solve for x
   x = 213,638,952.56/17,168.75
6. Step 6: Final answer
   x = 12,443.48