Finding the Fourth Proportional to 8,257.72, 12,386.13 and 2,710.33

Step by Step Solution

1. Step 1: Write the proportion equation
   8,257.72 : 12,386.13 = 2,710.33 : x
2. Step 2: Convert to fraction form
   8,257.72/12,386.13 = 2,710.33/x
3. Step 3: Cross multiply
   8,257.72x = 12,386.13 × 2,710.33
4. Step 4: Simplify right side
   8,257.72x = 33,570,499.72
5. Step 5: Solve for x
   x = 33,570,499.72/8,257.72
6. Step 6: Final answer
   x = 4,065.35