Finding the Fourth Proportional to 16,808.82, 23,196.25 and 9,639.00

Step by Step Solution

1. Step 1: Write the proportion equation
   16,808.82 : 23,196.25 = 9,639.00 : x
2. Step 2: Convert to fraction form
   16,808.82/23,196.25 = 9,639.00/x
3. Step 3: Cross multiply
   16,808.82x = 23,196.25 × 9,639.00
4. Step 4: Simplify right side
   16,808.82x = 223,588,757.83
5. Step 5: Solve for x
   x = 223,588,757.83/16,808.82
6. Step 6: Final answer
   x = 13,301.87