Finding the Fourth Proportional to 16,763.64, 23,133.83 and 9,209.99

Step by Step Solution

1. Step 1: Write the proportion equation
   16,763.64 : 23,133.83 = 9,209.99 : x
2. Step 2: Convert to fraction form
   16,763.64/23,133.83 = 9,209.99/x
3. Step 3: Cross multiply
   16,763.64x = 23,133.83 × 9,209.99
4. Step 4: Simplify right side
   16,763.64x = 213,062,250.32
5. Step 5: Solve for x
   x = 213,062,250.32/16,763.64
6. Step 6: Final answer
   x = 12,709.78