Finding the Fourth Proportional to 8,517.82, 12,779.76 and 3,253.22

Step by Step Solution

1. Step 1: Write the proportion equation
   8,517.82 : 12,779.76 = 3,253.22 : x
2. Step 2: Convert to fraction form
   8,517.82/12,779.76 = 3,253.22/x
3. Step 3: Cross multiply
   8,517.82x = 12,779.76 × 3,253.22
4. Step 4: Simplify right side
   8,517.82x = 41,575,370.83
5. Step 5: Solve for x
   x = 41,575,370.83/8,517.82
6. Step 6: Final answer
   x = 4,880.99