Finding the Fourth Proportional to 12,857.72, 17,744.94 and 7,270.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,857.72 : 17,744.94 = 7,270.52 : x
2. Step 2: Convert to fraction form
   12,857.72/17,744.94 = 7,270.52/x
3. Step 3: Cross multiply
   12,857.72x = 17,744.94 × 7,270.52
4. Step 4: Simplify right side
   12,857.72x = 129,014,941.17
5. Step 5: Solve for x
   x = 129,014,941.17/12,857.72
6. Step 6: Final answer
   x = 10,034.05