Finding the Fourth Proportional to 22,581.72, 33,842.34 and 12,717

Step by Step Solution

1. Step 1: Write the proportion equation
   22,581.72 : 33,842.34 = 12,717 : x
2. Step 2: Convert to fraction form
   22,581.72/33,842.34 = 12,717/x
3. Step 3: Cross multiply
   22,581.72x = 33,842.34 × 12,717
4. Step 4: Simplify right side
   22,581.72x = 430,373,037.78
5. Step 5: Solve for x
   x = 430,373,037.78/22,581.72
6. Step 6: Final answer
   x = 19,058.47