Finding the Fourth Proportional to 22,593.39, 31,171.41 and 13,637.49

Step by Step Solution

1. Step 1: Write the proportion equation
   22,593.39 : 31,171.41 = 13,637.49 : x
2. Step 2: Convert to fraction form
   22,593.39/31,171.41 = 13,637.49/x
3. Step 3: Cross multiply
   22,593.39x = 31,171.41 × 13,637.49
4. Step 4: Simplify right side
   22,593.39x = 425,099,792.16
5. Step 5: Solve for x
   x = 425,099,792.16/22,593.39
6. Step 6: Final answer
   x = 18,815.23