Finding the Fourth Proportional to 22,641.24, 31,243.24 and 13,081.56

Step by Step Solution

1. Step 1: Write the proportion equation
   22,641.24 : 31,243.24 = 13,081.56 : x
2. Step 2: Convert to fraction form
   22,641.24/31,243.24 = 13,081.56/x
3. Step 3: Cross multiply
   22,641.24x = 31,243.24 × 13,081.56
4. Step 4: Simplify right side
   22,641.24x = 408,710,318.65
5. Step 5: Solve for x
   x = 408,710,318.65/22,641.24
6. Step 6: Final answer
   x = 18,051.59