Finding the Fourth Proportional to 16,954.16, 23,399.15 and 9,402.17

Step by Step Solution

1. Step 1: Write the proportion equation
   16,954.16 : 23,399.15 = 9,402.17 : x
2. Step 2: Convert to fraction form
   16,954.16/23,399.15 = 9,402.17/x
3. Step 3: Cross multiply
   16,954.16x = 23,399.15 × 9,402.17
4. Step 4: Simplify right side
   16,954.16x = 220,002,622.15
5. Step 5: Solve for x
   x = 220,002,622.15/16,954.16
6. Step 6: Final answer
   x = 12,976.32