Finding the Fourth Proportional to 8,633.96, 12,950.56 and 3,951.28

Step by Step Solution

1. Step 1: Write the proportion equation
   8,633.96 : 12,950.56 = 3,951.28 : x
2. Step 2: Convert to fraction form
   8,633.96/12,950.56 = 3,951.28/x
3. Step 3: Cross multiply
   8,633.96x = 12,950.56 × 3,951.28
4. Step 4: Simplify right side
   8,633.96x = 51,171,288.72
5. Step 5: Solve for x
   x = 51,171,288.72/8,633.96
6. Step 6: Final answer
   x = 5,926.75