Finding the Fourth Proportional to 12,571.34, 17,351.31 and 8,322.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,571.34 : 17,351.31 = 8,322.56 : x
2. Step 2: Convert to fraction form
   12,571.34/17,351.31 = 8,322.56/x
3. Step 3: Cross multiply
   12,571.34x = 17,351.31 × 8,322.56
4. Step 4: Simplify right side
   12,571.34x = 144,407,425.68
5. Step 5: Solve for x
   x = 144,407,425.68/12,571.34
6. Step 6: Final answer
   x = 11,487.03