Finding the Fourth Proportional to 13,324.42, 19,995.72 and 8,632.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,324.42 : 19,995.72 = 8,632.72 : x
2. Step 2: Convert to fraction form
   13,324.42/19,995.72 = 8,632.72/x
3. Step 3: Cross multiply
   13,324.42x = 19,995.72 × 8,632.72
4. Step 4: Simplify right side
   13,324.42x = 172,617,451.96
5. Step 5: Solve for x
   x = 172,617,451.96/13,324.42
6. Step 6: Final answer
   x = 12,954.97