Finding the Fourth Proportional to 22,872.48, 31,564.88 and 12,800.88

Step by Step Solution

1. Step 1: Write the proportion equation
   22,872.48 : 31,564.88 = 12,800.88 : x
2. Step 2: Convert to fraction form
   22,872.48/31,564.88 = 12,800.88/x
3. Step 3: Cross multiply
   22,872.48x = 31,564.88 × 12,800.88
4. Step 4: Simplify right side
   22,872.48x = 404,058,241.09
5. Step 5: Solve for x
   x = 404,058,241.09/22,872.48
6. Step 6: Final answer
   x = 17,665.69