Finding the Fourth Proportional to 22,257, 30,714.72 and 12,185.52

Step by Step Solution

1. Step 1: Write the proportion equation
   22,257 : 30,714.72 = 12,185.52 : x
2. Step 2: Convert to fraction form
   22,257/30,714.72 = 12,185.52/x
3. Step 3: Cross multiply
   22,257x = 30,714.72 × 12,185.52
4. Step 4: Simplify right side
   22,257x = 374,274,834.85
5. Step 5: Solve for x
   x = 374,274,834.85/22,257
6. Step 6: Final answer
   x = 16,816.05