Finding the Fourth Proportional to 22,357.30, 30,852.48 and 12,285.72

Step by Step Solution

1. Step 1: Write the proportion equation
   22,357.30 : 30,852.48 = 12,285.72 : x
2. Step 2: Convert to fraction form
   22,357.30/30,852.48 = 12,285.72/x
3. Step 3: Cross multiply
   22,357.30x = 30,852.48 × 12,285.72
4. Step 4: Simplify right side
   22,357.30x = 379,044,930.59
5. Step 5: Solve for x
   x = 379,044,930.59/22,357.30
6. Step 6: Final answer
   x = 16,953.97