Finding the Fourth Proportional to 16,729.47, 23,087.79 and 9,656.37

Step by Step Solution

1. Step 1: Write the proportion equation
   16,729.47 : 23,087.79 = 9,656.37 : x
2. Step 2: Convert to fraction form
   16,729.47/23,087.79 = 9,656.37/x
3. Step 3: Cross multiply
   16,729.47x = 23,087.79 × 9,656.37
4. Step 4: Simplify right side
   16,729.47x = 222,944,242.72
5. Step 5: Solve for x
   x = 222,944,242.72/16,729.47
6. Step 6: Final answer
   x = 13,326.44