Finding the Fourth Proportional to 8,874.86, 13,311.69 and 3,944.78

Step by Step Solution

1. Step 1: Write the proportion equation
   8,874.86 : 13,311.69 = 3,944.78 : x
2. Step 2: Convert to fraction form
   8,874.86/13,311.69 = 3,944.78/x
3. Step 3: Cross multiply
   8,874.86x = 13,311.69 × 3,944.78
4. Step 4: Simplify right side
   8,874.86x = 52,511,688.48
5. Step 5: Solve for x
   x = 52,511,688.48/8,874.86
6. Step 6: Final answer
   x = 5,916.90