Finding the Fourth Proportional to 10,896.86, 16,335.43 and 3,969.74

Step by Step Solution

1. Step 1: Write the proportion equation
   10,896.86 : 16,335.43 = 3,969.74 : x
2. Step 2: Convert to fraction form
   10,896.86/16,335.43 = 3,969.74/x
3. Step 3: Cross multiply
   10,896.86x = 16,335.43 × 3,969.74
4. Step 4: Simplify right side
   10,896.86x = 64,847,409.89
5. Step 5: Solve for x
   x = 64,847,409.89/10,896.86
6. Step 6: Final answer
   x = 5,951.02