Finding the Fourth Proportional to 10,935.78, 16,403.92 and 3,916.27

Step by Step Solution

1. Step 1: Write the proportion equation
   10,935.78 : 16,403.92 = 3,916.27 : x
2. Step 2: Convert to fraction form
   10,935.78/16,403.92 = 3,916.27/x
3. Step 3: Cross multiply
   10,935.78x = 16,403.92 × 3,916.27
4. Step 4: Simplify right side
   10,935.78x = 64,242,179.78
5. Step 5: Solve for x
   x = 64,242,179.78/10,935.78
6. Step 6: Final answer
   x = 5,874.49