Finding the Fourth Proportional to 16,203, 22,357.71 and 9,129.27

Step by Step Solution

1. Step 1: Write the proportion equation
   16,203 : 22,357.71 = 9,129.27 : x
2. Step 2: Convert to fraction form
   16,203/22,357.71 = 9,129.27/x
3. Step 3: Cross multiply
   16,203x = 22,357.71 × 9,129.27
4. Step 4: Simplify right side
   16,203x = 204,109,571.17
5. Step 5: Solve for x
   x = 204,109,571.17/16,203
6. Step 6: Final answer
   x = 12,597.02