Finding the Fourth Proportional to 11,326.32, 16,986.56 and 3,531.12

Step by Step Solution

1. Step 1: Write the proportion equation
   11,326.32 : 16,986.56 = 3,531.12 : x
2. Step 2: Convert to fraction form
   11,326.32/16,986.56 = 3,531.12/x
3. Step 3: Cross multiply
   11,326.32x = 16,986.56 × 3,531.12
4. Step 4: Simplify right side
   11,326.32x = 59,981,581.75
5. Step 5: Solve for x
   x = 59,981,581.75/11,326.32
6. Step 6: Final answer
   x = 5,295.77