Finding the Fourth Proportional to 16,815.33, 23,206.20 and 9,263.31

Step by Step Solution

1. Step 1: Write the proportion equation
   16,815.33 : 23,206.20 = 9,263.31 : x
2. Step 2: Convert to fraction form
   16,815.33/23,206.20 = 9,263.31/x
3. Step 3: Cross multiply
   16,815.33x = 23,206.20 × 9,263.31
4. Step 4: Simplify right side
   16,815.33x = 214,966,233.30
5. Step 5: Solve for x
   x = 214,966,233.30/16,815.33
6. Step 6: Final answer
   x = 12,783.94