Finding the Fourth Proportional to 9,723.72, 14,589.72 and 3,151.80

Step by Step Solution

1. Step 1: Write the proportion equation
   9,723.72 : 14,589.72 = 3,151.80 : x
2. Step 2: Convert to fraction form
   9,723.72/14,589.72 = 3,151.80/x
3. Step 3: Cross multiply
   9,723.72x = 14,589.72 × 3,151.80
4. Step 4: Simplify right side
   9,723.72x = 45,983,879.50
5. Step 5: Solve for x
   x = 45,983,879.50/9,723.72
6. Step 6: Final answer
   x = 4,729.04