Finding the Fourth Proportional to 16,908.16, 23,333.42 and 9,354.31

Step by Step Solution

1. Step 1: Write the proportion equation
   16,908.16 : 23,333.42 = 9,354.31 : x
2. Step 2: Convert to fraction form
   16,908.16/23,333.42 = 9,354.31/x
3. Step 3: Cross multiply
   16,908.16x = 23,333.42 × 9,354.31
4. Step 4: Simplify right side
   16,908.16x = 218,268,044.04
5. Step 5: Solve for x
   x = 218,268,044.04/16,908.16
6. Step 6: Final answer
   x = 12,909.04