Finding the Fourth Proportional to 16,211.30, 22,390.04 and 10,896.89

Step by Step Solution

1. Step 1: Write the proportion equation
   16,211.30 : 22,390.04 = 10,896.89 : x
2. Step 2: Convert to fraction form
   16,211.30/22,390.04 = 10,896.89/x
3. Step 3: Cross multiply
   16,211.30x = 22,390.04 × 10,896.89
4. Step 4: Simplify right side
   16,211.30x = 243,981,718.27
5. Step 5: Solve for x
   x = 243,981,718.27/16,211.30
6. Step 6: Final answer
   x = 15,050.11