Finding the Fourth Proportional to 22,597.89, 31,185.09 and 12,661.89

Step by Step Solution

1. Step 1: Write the proportion equation
   22,597.89 : 31,185.09 = 12,661.89 : x
2. Step 2: Convert to fraction form
   22,597.89/31,185.09 = 12,661.89/x
3. Step 3: Cross multiply
   22,597.89x = 31,185.09 × 12,661.89
4. Step 4: Simplify right side
   22,597.89x = 394,862,179.22
5. Step 5: Solve for x
   x = 394,862,179.22/22,597.89
6. Step 6: Final answer
   x = 17,473.41