Finding the Fourth Proportional to 8,644.05, 12,965.94 and 3,097.71

Step by Step Solution

1. Step 1: Write the proportion equation
   8,644.05 : 12,965.94 = 3,097.71 : x
2. Step 2: Convert to fraction form
   8,644.05/12,965.94 = 3,097.71/x
3. Step 3: Cross multiply
   8,644.05x = 12,965.94 × 3,097.71
4. Step 4: Simplify right side
   8,644.05x = 40,164,722.00
5. Step 5: Solve for x
   x = 40,164,722.00/8,644.05
6. Step 6: Final answer
   x = 4,646.52