Finding the Fourth Proportional to 12,632.72, 18,951.24 and 3,866.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,632.72 : 18,951.24 = 3,866.72 : x
2. Step 2: Convert to fraction form
   12,632.72/18,951.24 = 3,866.72/x
3. Step 3: Cross multiply
   12,632.72x = 18,951.24 × 3,866.72
4. Step 4: Simplify right side
   12,632.72x = 73,279,138.73
5. Step 5: Solve for x
   x = 73,279,138.73/12,632.72
6. Step 6: Final answer
   x = 5,800.74