Finding the Fourth Proportional to 17,559.31, 26,348.69 and 7,170.25

Step by Step Solution

1. Step 1: Write the proportion equation
   17,559.31 : 26,348.69 = 7,170.25 : x
2. Step 2: Convert to fraction form
   17,559.31/26,348.69 = 7,170.25/x
3. Step 3: Cross multiply
   17,559.31x = 26,348.69 × 7,170.25
4. Step 4: Simplify right side
   17,559.31x = 188,926,694.47
5. Step 5: Solve for x
   x = 188,926,694.47/17,559.31
6. Step 6: Final answer
   x = 10,759.35