Finding the Fourth Proportional to 17,078.43, 25,620.69 and 5,231.97

Step by Step Solution

1. Step 1: Write the proportion equation
   17,078.43 : 25,620.69 = 5,231.97 : x
2. Step 2: Convert to fraction form
   17,078.43/25,620.69 = 5,231.97/x
3. Step 3: Cross multiply
   17,078.43x = 25,620.69 × 5,231.97
4. Step 4: Simplify right side
   17,078.43x = 134,046,681.46
5. Step 5: Solve for x
   x = 134,046,681.46/17,078.43
6. Step 6: Final answer
   x = 7,848.89