Finding the Fourth Proportional to 23,144.36, 31,939.79 and 14,196.78

Step by Step Solution

1. Step 1: Write the proportion equation
   23,144.36 : 31,939.79 = 14,196.78 : x
2. Step 2: Convert to fraction form
   23,144.36/31,939.79 = 14,196.78/x
3. Step 3: Cross multiply
   23,144.36x = 31,939.79 × 14,196.78
4. Step 4: Simplify right side
   23,144.36x = 453,442,100.89
5. Step 5: Solve for x
   x = 453,442,100.89/23,144.36
6. Step 6: Final answer
   x = 19,591.91