Finding the Fourth Proportional to 31,229.37, 43,081.79 and 22,709.61

Step by Step Solution

1. Step 1: Write the proportion equation
   31,229.37 : 43,081.79 = 22,709.61 : x
2. Step 2: Convert to fraction form
   31,229.37/43,081.79 = 22,709.61/x
3. Step 3: Cross multiply
   31,229.37x = 43,081.79 × 22,709.61
4. Step 4: Simplify right side
   31,229.37x = 978,370,535.45
5. Step 5: Solve for x
   x = 978,370,535.45/31,229.37
6. Step 6: Final answer
   x = 31,328.54