Finding the Fourth Proportional to 22,622.38, 31,222.63 and 12,554.05

Step by Step Solution

1. Step 1: Write the proportion equation
   22,622.38 : 31,222.63 = 12,554.05 : x
2. Step 2: Convert to fraction form
   22,622.38/31,222.63 = 12,554.05/x
3. Step 3: Cross multiply
   22,622.38x = 31,222.63 × 12,554.05
4. Step 4: Simplify right side
   22,622.38x = 391,970,395.38
5. Step 5: Solve for x
   x = 391,970,395.38/22,622.38
6. Step 6: Final answer
   x = 17,326.67