Finding the Fourth Proportional to 16,921.92, 23,351.91 and 9,368.25

Step by Step Solution

1. Step 1: Write the proportion equation
   16,921.92 : 23,351.91 = 9,368.25 : x
2. Step 2: Convert to fraction form
   16,921.92/23,351.91 = 9,368.25/x
3. Step 3: Cross multiply
   16,921.92x = 23,351.91 × 9,368.25
4. Step 4: Simplify right side
   16,921.92x = 218,766,530.86
5. Step 5: Solve for x
   x = 218,766,530.86/16,921.92
6. Step 6: Final answer
   x = 12,928.00