Finding the Fourth Proportional to 12,857.56, 17,744.22 and 7,268.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,857.56 : 17,744.22 = 7,268.56 : x
2. Step 2: Convert to fraction form
   12,857.56/17,744.22 = 7,268.56/x
3. Step 3: Cross multiply
   12,857.56x = 17,744.22 × 7,268.56
4. Step 4: Simplify right side
   12,857.56x = 128,974,927.72
5. Step 5: Solve for x
   x = 128,974,927.72/12,857.56
6. Step 6: Final answer
   x = 10,031.06