Finding the Fourth Proportional to 16,286.81, 22,471.83 and 9,572.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,286.81 : 22,471.83 = 9,572.72 : x
2. Step 2: Convert to fraction form
   16,286.81/22,471.83 = 9,572.72/x
3. Step 3: Cross multiply
   16,286.81x = 22,471.83 × 9,572.72
4. Step 4: Simplify right side
   16,286.81x = 215,116,424.12
5. Step 5: Solve for x
   x = 215,116,424.12/16,286.81
6. Step 6: Final answer
   x = 13,208.02