Finding the Fourth Proportional to 18,738.69, 27,971.33 and 16,374.05

Step by Step Solution

1. Step 1: Write the proportion equation
   18,738.69 : 27,971.33 = 16,374.05 : x
2. Step 2: Convert to fraction form
   18,738.69/27,971.33 = 16,374.05/x
3. Step 3: Cross multiply
   18,738.69x = 27,971.33 × 16,374.05
4. Step 4: Simplify right side
   18,738.69x = 458,003,839.15
5. Step 5: Solve for x
   x = 458,003,839.15/18,738.69
6. Step 6: Final answer
   x = 24,441.61