Finding the Fourth Proportional to 21,951.92, 30,293.69 and 11,880.37

Step by Step Solution

1. Step 1: Write the proportion equation
   21,951.92 : 30,293.69 = 11,880.37 : x
2. Step 2: Convert to fraction form
   21,951.92/30,293.69 = 11,880.37/x
3. Step 3: Cross multiply
   21,951.92x = 30,293.69 × 11,880.37
4. Step 4: Simplify right side
   21,951.92x = 359,900,110.73
5. Step 5: Solve for x
   x = 359,900,110.73/21,951.92
6. Step 6: Final answer
   x = 16,394.93