Finding the Fourth Proportional to 16,913.92, 23,339.82 and 9,360.10

Step by Step Solution

1. Step 1: Write the proportion equation
   16,913.92 : 23,339.82 = 9,360.10 : x
2. Step 2: Convert to fraction form
   16,913.92/23,339.82 = 9,360.10/x
3. Step 3: Cross multiply
   16,913.92x = 23,339.82 × 9,360.10
4. Step 4: Simplify right side
   16,913.92x = 218,463,049.18
5. Step 5: Solve for x
   x = 218,463,049.18/16,913.92
6. Step 6: Final answer
   x = 12,916.17