Finding the Fourth Proportional to 8,633.68, 12,939.33 and 3,630.37

Step by Step Solution

1. Step 1: Write the proportion equation
   8,633.68 : 12,939.33 = 3,630.37 : x
2. Step 2: Convert to fraction form
   8,633.68/12,939.33 = 3,630.37/x
3. Step 3: Cross multiply
   8,633.68x = 12,939.33 × 3,630.37
4. Step 4: Simplify right side
   8,633.68x = 46,974,555.45
5. Step 5: Solve for x
   x = 46,974,555.45/8,633.68
6. Step 6: Final answer
   x = 5,440.85