Finding the Fourth Proportional to 22,264.22, 30,731.46 and 12,839.06

Step by Step Solution

1. Step 1: Write the proportion equation
   22,264.22 : 30,731.46 = 12,839.06 : x
2. Step 2: Convert to fraction form
   22,264.22/30,731.46 = 12,839.06/x
3. Step 3: Cross multiply
   22,264.22x = 30,731.46 × 12,839.06
4. Step 4: Simplify right side
   22,264.22x = 394,563,058.83
5. Step 5: Solve for x
   x = 394,563,058.83/22,264.22
6. Step 6: Final answer
   x = 17,721.85