Finding the Fourth Proportional to 21,162.27, 29,196.41 and 12,212.04

Step by Step Solution

1. Step 1: Write the proportion equation
   21,162.27 : 29,196.41 = 12,212.04 : x
2. Step 2: Convert to fraction form
   21,162.27/29,196.41 = 12,212.04/x
3. Step 3: Cross multiply
   21,162.27x = 29,196.41 × 12,212.04
4. Step 4: Simplify right side
   21,162.27x = 356,547,665.72
5. Step 5: Solve for x
   x = 356,547,665.72/21,162.27
6. Step 6: Final answer
   x = 16,848.27