Finding the Fourth Proportional to 20,729.16, 31,067.76 and 14,796.72

Step by Step Solution

1. Step 1: Write the proportion equation
   20,729.16 : 31,067.76 = 14,796.72 : x
2. Step 2: Convert to fraction form
   20,729.16/31,067.76 = 14,796.72/x
3. Step 3: Cross multiply
   20,729.16x = 31,067.76 × 14,796.72
4. Step 4: Simplify right side
   20,729.16x = 459,700,945.75
5. Step 5: Solve for x
   x = 459,700,945.75/20,729.16
6. Step 6: Final answer
   x = 22,176.54