Finding the Fourth Proportional to 22,212.78, 30,653.57 and 12,141.23

Step by Step Solution

1. Step 1: Write the proportion equation
   22,212.78 : 30,653.57 = 12,141.23 : x
2. Step 2: Convert to fraction form
   22,212.78/30,653.57 = 12,141.23/x
3. Step 3: Cross multiply
   22,212.78x = 30,653.57 × 12,141.23
4. Step 4: Simplify right side
   22,212.78x = 372,172,043.69
5. Step 5: Solve for x
   x = 372,172,043.69/22,212.78
6. Step 6: Final answer
   x = 16,754.86