Finding the Fourth Proportional to 22,111.92, 30,513.47 and 12,040.40

Step by Step Solution

1. Step 1: Write the proportion equation
   22,111.92 : 30,513.47 = 12,040.40 : x
2. Step 2: Convert to fraction form
   22,111.92/30,513.47 = 12,040.40/x
3. Step 3: Cross multiply
   22,111.92x = 30,513.47 × 12,040.40
4. Step 4: Simplify right side
   22,111.92x = 367,394,400.27
5. Step 5: Solve for x
   x = 367,394,400.27/22,111.92
6. Step 6: Final answer
   x = 16,615.22