Finding the Fourth Proportional to 22,081.09, 30,471.60 and 12,009.31

Step by Step Solution

1. Step 1: Write the proportion equation
   22,081.09 : 30,471.60 = 12,009.31 : x
2. Step 2: Convert to fraction form
   22,081.09/30,471.60 = 12,009.31/x
3. Step 3: Cross multiply
   22,081.09x = 30,471.60 × 12,009.31
4. Step 4: Simplify right side
   22,081.09x = 365,942,890.60
5. Step 5: Solve for x
   x = 365,942,890.60/22,081.09
6. Step 6: Final answer
   x = 16,572.68