Finding the Fourth Proportional to 16,716.52, 23,069.46 and 9,643.60

Step by Step Solution

1. Step 1: Write the proportion equation
   16,716.52 : 23,069.46 = 9,643.60 : x
2. Step 2: Convert to fraction form
   16,716.52/23,069.46 = 9,643.60/x
3. Step 3: Cross multiply
   16,716.52x = 23,069.46 × 9,643.60
4. Step 4: Simplify right side
   16,716.52x = 222,472,644.46
5. Step 5: Solve for x
   x = 222,472,644.46/16,716.52
6. Step 6: Final answer
   x = 13,308.55