Finding the Fourth Proportional to 12,633.86, 18,951.69 and 3,867.64

Step by Step Solution

1. Step 1: Write the proportion equation
   12,633.86 : 18,951.69 = 3,867.64 : x
2. Step 2: Convert to fraction form
   12,633.86/18,951.69 = 3,867.64/x
3. Step 3: Cross multiply
   12,633.86x = 18,951.69 × 3,867.64
4. Step 4: Simplify right side
   12,633.86x = 73,298,314.31
5. Step 5: Solve for x
   x = 73,298,314.31/12,633.86
6. Step 6: Final answer
   x = 5,801.74