Finding the Fourth Proportional to 10,960.71, 16,439.09 and 3,564.15

Step by Step Solution

1. Step 1: Write the proportion equation
   10,960.71 : 16,439.09 = 3,564.15 : x
2. Step 2: Convert to fraction form
   10,960.71/16,439.09 = 3,564.15/x
3. Step 3: Cross multiply
   10,960.71x = 16,439.09 × 3,564.15
4. Step 4: Simplify right side
   10,960.71x = 58,591,364.80
5. Step 5: Solve for x
   x = 58,591,364.80/10,960.71
6. Step 6: Final answer
   x = 5,345.58