Finding the Fourth Proportional to 17,109.70, 25,662.15 and 5,424.10

Step by Step Solution

1. Step 1: Write the proportion equation
   17,109.70 : 25,662.15 = 5,424.10 : x
2. Step 2: Convert to fraction form
   17,109.70/25,662.15 = 5,424.10/x
3. Step 3: Cross multiply
   17,109.70x = 25,662.15 × 5,424.10
4. Step 4: Simplify right side
   17,109.70x = 139,194,067.82
5. Step 5: Solve for x
   x = 139,194,067.82/17,109.70
6. Step 6: Final answer
   x = 8,135.39