Finding the Fourth Proportional to 17,109.35, 25,668.14 and 5,422.57

Step by Step Solution

1. Step 1: Write the proportion equation
   17,109.35 : 25,668.14 = 5,422.57 : x
2. Step 2: Convert to fraction form
   17,109.35/25,668.14 = 5,422.57/x
3. Step 3: Cross multiply
   17,109.35x = 25,668.14 × 5,422.57
4. Step 4: Simplify right side
   17,109.35x = 139,187,297.33
5. Step 5: Solve for x
   x = 139,187,297.33/17,109.35
6. Step 6: Final answer
   x = 8,135.16