Finding the Fourth Proportional to 17,168.87, 25,769.96 and 8,290.48

Step by Step Solution

1. Step 1: Write the proportion equation
   17,168.87 : 25,769.96 = 8,290.48 : x
2. Step 2: Convert to fraction form
   17,168.87/25,769.96 = 8,290.48/x
3. Step 3: Cross multiply
   17,168.87x = 25,769.96 × 8,290.48
4. Step 4: Simplify right side
   17,168.87x = 213,645,250.69
5. Step 5: Solve for x
   x = 213,645,250.69/17,168.87
6. Step 6: Final answer
   x = 12,443.75