Finding the Fourth Proportional to 8,196.26, 11,315.50 and 5,409.86

Step by Step Solution

1. Step 1: Write the proportion equation
   8,196.26 : 11,315.50 = 5,409.86 : x
2. Step 2: Convert to fraction form
   8,196.26/11,315.50 = 5,409.86/x
3. Step 3: Cross multiply
   8,196.26x = 11,315.50 × 5,409.86
4. Step 4: Simplify right side
   8,196.26x = 61,215,200.73
5. Step 5: Solve for x
   x = 61,215,200.73/8,196.26
6. Step 6: Final answer
   x = 7,468.68