Finding the Fourth Proportional to 17,142.69, 25,717.26 and 7,783.37

Step by Step Solution

1. Step 1: Write the proportion equation
   17,142.69 : 25,717.26 = 7,783.37 : x
2. Step 2: Convert to fraction form
   17,142.69/25,717.26 = 7,783.37/x
3. Step 3: Cross multiply
   17,142.69x = 25,717.26 × 7,783.37
4. Step 4: Simplify right side
   17,142.69x = 200,166,949.97
5. Step 5: Solve for x
   x = 200,166,949.97/17,142.69
6. Step 6: Final answer
   x = 11,676.52