Finding the Fourth Proportional to 16,286.82, 22,470.66 and 9,570.30

Step by Step Solution

1. Step 1: Write the proportion equation
   16,286.82 : 22,470.66 = 9,570.30 : x
2. Step 2: Convert to fraction form
   16,286.82/22,470.66 = 9,570.30/x
3. Step 3: Cross multiply
   16,286.82x = 22,470.66 × 9,570.30
4. Step 4: Simplify right side
   16,286.82x = 215,050,957.40
5. Step 5: Solve for x
   x = 215,050,957.40/16,286.82
6. Step 6: Final answer
   x = 13,203.99