Finding the Fourth Proportional to 12,757.50, 17,606.97 and 7,168.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,757.50 : 17,606.97 = 7,168.50 : x
2. Step 2: Convert to fraction form
   12,757.50/17,606.97 = 7,168.50/x
3. Step 3: Cross multiply
   12,757.50x = 17,606.97 × 7,168.50
4. Step 4: Simplify right side
   12,757.50x = 126,215,564.45
5. Step 5: Solve for x
   x = 126,215,564.45/12,757.50
6. Step 6: Final answer
   x = 9,893.44