Finding the Fourth Proportional to 16,786.66, 23,164.46 and 9,616.60

Step by Step Solution

1. Step 1: Write the proportion equation
   16,786.66 : 23,164.46 = 9,616.60 : x
2. Step 2: Convert to fraction form
   16,786.66/23,164.46 = 9,616.60/x
3. Step 3: Cross multiply
   16,786.66x = 23,164.46 × 9,616.60
4. Step 4: Simplify right side
   16,786.66x = 222,763,368.50
5. Step 5: Solve for x
   x = 222,763,368.50/16,786.66
6. Step 6: Final answer
   x = 13,270.26