Finding the Fourth Proportional to 21,630.27, 29,849.71 and 12,198.83

Step by Step Solution

1. Step 1: Write the proportion equation
   21,630.27 : 29,849.71 = 12,198.83 : x
2. Step 2: Convert to fraction form
   21,630.27/29,849.71 = 12,198.83/x
3. Step 3: Cross multiply
   21,630.27x = 29,849.71 × 12,198.83
4. Step 4: Simplify right side
   21,630.27x = 364,131,537.84
5. Step 5: Solve for x
   x = 364,131,537.84/21,630.27
6. Step 6: Final answer
   x = 16,834.35