Finding the Fourth Proportional to 8,196.73, 12,287.80 and 3,811.79

Step by Step Solution

1. Step 1: Write the proportion equation
   8,196.73 : 12,287.80 = 3,811.79 : x
2. Step 2: Convert to fraction form
   8,196.73/12,287.80 = 3,811.79/x
3. Step 3: Cross multiply
   8,196.73x = 12,287.80 × 3,811.79
4. Step 4: Simplify right side
   8,196.73x = 46,838,548.65
5. Step 5: Solve for x
   x = 46,838,548.65/8,196.73
6. Step 6: Final answer
   x = 5,714.30