Finding the Fourth Proportional to 9,411.92, 14,118.72 and 3,865.60

Step by Step Solution

1. Step 1: Write the proportion equation
   9,411.92 : 14,118.72 = 3,865.60 : x
2. Step 2: Convert to fraction form
   9,411.92/14,118.72 = 3,865.60/x
3. Step 3: Cross multiply
   9,411.92x = 14,118.72 × 3,865.60
4. Step 4: Simplify right side
   9,411.92x = 54,577,324.03
5. Step 5: Solve for x
   x = 54,577,324.03/9,411.92
6. Step 6: Final answer
   x = 5,798.74