Finding the Fourth Proportional to 8,357.82, 12,537.82 and 2,808.78

Step by Step Solution

1. Step 1: Write the proportion equation
   8,357.82 : 12,537.82 = 2,808.78 : x
2. Step 2: Convert to fraction form
   8,357.82/12,537.82 = 2,808.78/x
3. Step 3: Cross multiply
   8,357.82x = 12,537.82 × 2,808.78
4. Step 4: Simplify right side
   8,357.82x = 35,215,978.06
5. Step 5: Solve for x
   x = 35,215,978.06/8,357.82
6. Step 6: Final answer
   x = 4,213.54