Finding the Fourth Proportional to 33,361.09, 50,061.38 and 12,315.79

Step by Step Solution

1. Step 1: Write the proportion equation
   33,361.09 : 50,061.38 = 12,315.79 : x
2. Step 2: Convert to fraction form
   33,361.09/50,061.38 = 12,315.79/x
3. Step 3: Cross multiply
   33,361.09x = 50,061.38 × 12,315.79
4. Step 4: Simplify right side
   33,361.09x = 616,545,443.19
5. Step 5: Solve for x
   x = 616,545,443.19/33,361.09
6. Step 6: Final answer
   x = 18,480.97