Finding the Fourth Proportional to 6,271.12, 8,653.71 and 3,618.64

Step by Step Solution

1. Step 1: Write the proportion equation
   6,271.12 : 8,653.71 = 3,618.64 : x
2. Step 2: Convert to fraction form
   6,271.12/8,653.71 = 3,618.64/x
3. Step 3: Cross multiply
   6,271.12x = 8,653.71 × 3,618.64
4. Step 4: Simplify right side
   6,271.12x = 31,314,661.15
5. Step 5: Solve for x
   x = 31,314,661.15/6,271.12
6. Step 6: Final answer
   x = 4,993.47