Finding the Fourth Proportional to 11,656.28, 17,480.64 and 3,863

Step by Step Solution

1. Step 1: Write the proportion equation
   11,656.28 : 17,480.64 = 3,863 : x
2. Step 2: Convert to fraction form
   11,656.28/17,480.64 = 3,863/x
3. Step 3: Cross multiply
   11,656.28x = 17,480.64 × 3,863
4. Step 4: Simplify right side
   11,656.28x = 67,527,712.32
5. Step 5: Solve for x
   x = 67,527,712.32/11,656.28
6. Step 6: Final answer
   x = 5,793.25