Finding the Fourth Proportional to 16,916.15, 23,343.69 and 9,362.79

Step by Step Solution

1. Step 1: Write the proportion equation
   16,916.15 : 23,343.69 = 9,362.79 : x
2. Step 2: Convert to fraction form
   16,916.15/23,343.69 = 9,362.79/x
3. Step 3: Cross multiply
   16,916.15x = 23,343.69 × 9,362.79
4. Step 4: Simplify right side
   16,916.15x = 218,562,067.30
5. Step 5: Solve for x
   x = 218,562,067.30/16,916.15
6. Step 6: Final answer
   x = 12,920.32