Finding the Fourth Proportional to 16,929.86, 23,363.39 and 9,376.31

Step by Step Solution

1. Step 1: Write the proportion equation
   16,929.86 : 23,363.39 = 9,376.31 : x
2. Step 2: Convert to fraction form
   16,929.86/23,363.39 = 9,376.31/x
3. Step 3: Cross multiply
   16,929.86x = 23,363.39 × 9,376.31
4. Step 4: Simplify right side
   16,929.86x = 219,062,469.14
5. Step 5: Solve for x
   x = 219,062,469.14/16,929.86
6. Step 6: Final answer
   x = 12,939.42