Finding the Fourth Proportional to 17,109.52, 25,665.18 and 5,423.65

Step by Step Solution

1. Step 1: Write the proportion equation
   17,109.52 : 25,665.18 = 5,423.65 : x
2. Step 2: Convert to fraction form
   17,109.52/25,665.18 = 5,423.65/x
3. Step 3: Cross multiply
   17,109.52x = 25,665.18 × 5,423.65
4. Step 4: Simplify right side
   17,109.52x = 139,198,825.18
5. Step 5: Solve for x
   x = 139,198,825.18/17,109.52
6. Step 6: Final answer
   x = 8,135.76