Finding the Fourth Proportional to 22,604.09, 31,196.43 and 13,173.26

Step by Step Solution

1. Step 1: Write the proportion equation
   22,604.09 : 31,196.43 = 13,173.26 : x
2. Step 2: Convert to fraction form
   22,604.09/31,196.43 = 13,173.26/x
3. Step 3: Cross multiply
   22,604.09x = 31,196.43 × 13,173.26
4. Step 4: Simplify right side
   22,604.09x = 410,958,527.48
5. Step 5: Solve for x
   x = 410,958,527.48/22,604.09
6. Step 6: Final answer
   x = 18,180.72