Finding the Fourth Proportional to 23,940.28, 33,036.15 and 13,868.07

Step by Step Solution

1. Step 1: Write the proportion equation
   23,940.28 : 33,036.15 = 13,868.07 : x
2. Step 2: Convert to fraction form
   23,940.28/33,036.15 = 13,868.07/x
3. Step 3: Cross multiply
   23,940.28x = 33,036.15 × 13,868.07
4. Step 4: Simplify right side
   23,940.28x = 458,147,640.73
5. Step 5: Solve for x
   x = 458,147,640.73/23,940.28
6. Step 6: Final answer
   x = 19,137.10