Finding the Fourth Proportional to 16,992.48, 23,448.83 and 9,439.30

Step by Step Solution

1. Step 1: Write the proportion equation
   16,992.48 : 23,448.83 = 9,439.30 : x
2. Step 2: Convert to fraction form
   16,992.48/23,448.83 = 9,439.30/x
3. Step 3: Cross multiply
   16,992.48x = 23,448.83 × 9,439.30
4. Step 4: Simplify right side
   16,992.48x = 221,340,541.02
5. Step 5: Solve for x
   x = 221,340,541.02/16,992.48
6. Step 6: Final answer
   x = 13,025.79