Finding the Fourth Proportional to 8,548.47, 12,824.37 and 3,618.09

Step by Step Solution

1. Step 1: Write the proportion equation
   8,548.47 : 12,824.37 = 3,618.09 : x
2. Step 2: Convert to fraction form
   8,548.47/12,824.37 = 3,618.09/x
3. Step 3: Cross multiply
   8,548.47x = 12,824.37 × 3,618.09
4. Step 4: Simplify right side
   8,548.47x = 46,399,724.85
5. Step 5: Solve for x
   x = 46,399,724.85/8,548.47
6. Step 6: Final answer
   x = 5,427.84