Finding the Fourth Proportional to 12,857.71, 17,749.41 and 7,552.86

Step by Step Solution

1. Step 1: Write the proportion equation
   12,857.71 : 17,749.41 = 7,552.86 : x
2. Step 2: Convert to fraction form
   12,857.71/17,749.41 = 7,552.86/x
3. Step 3: Cross multiply
   12,857.71x = 17,749.41 × 7,552.86
4. Step 4: Simplify right side
   12,857.71x = 134,058,682.30
5. Step 5: Solve for x
   x = 134,058,682.30/12,857.71
6. Step 6: Final answer
   x = 10,426.33