Finding the Fourth Proportional to 16,380.27, 22,605.59 and 9,212.45

Step by Step Solution

1. Step 1: Write the proportion equation
   16,380.27 : 22,605.59 = 9,212.45 : x
2. Step 2: Convert to fraction form
   16,380.27/22,605.59 = 9,212.45/x
3. Step 3: Cross multiply
   16,380.27x = 22,605.59 × 9,212.45
4. Step 4: Simplify right side
   16,380.27x = 208,252,708.51
5. Step 5: Solve for x
   x = 208,252,708.51/16,380.27
6. Step 6: Final answer
   x = 12,713.63