Finding the Fourth Proportional to 16,908.39, 23,333.37 and 9,355.29

Step by Step Solution

1. Step 1: Write the proportion equation
   16,908.39 : 23,333.37 = 9,355.29 : x
2. Step 2: Convert to fraction form
   16,908.39/23,333.37 = 9,355.29/x
3. Step 3: Cross multiply
   16,908.39x = 23,333.37 × 9,355.29
4. Step 4: Simplify right side
   16,908.39x = 218,290,443.03
5. Step 5: Solve for x
   x = 218,290,443.03/16,908.39
6. Step 6: Final answer
   x = 12,910.19