Finding the Fourth Proportional to 16,976.84, 23,426.96 and 9,423.18

Step by Step Solution

1. Step 1: Write the proportion equation
   16,976.84 : 23,426.96 = 9,423.18 : x
2. Step 2: Convert to fraction form
   16,976.84/23,426.96 = 9,423.18/x
3. Step 3: Cross multiply
   16,976.84x = 23,426.96 × 9,423.18
4. Step 4: Simplify right side
   16,976.84x = 220,756,413.82
5. Step 5: Solve for x
   x = 220,756,413.82/16,976.84
6. Step 6: Final answer
   x = 13,003.38