Finding the Fourth Proportional to 9,939.53, 14,872.73 and 5,993.21

Step by Step Solution

1. Step 1: Write the proportion equation
   9,939.53 : 14,872.73 = 5,993.21 : x
2. Step 2: Convert to fraction form
   9,939.53/14,872.73 = 5,993.21/x
3. Step 3: Cross multiply
   9,939.53x = 14,872.73 × 5,993.21
4. Step 4: Simplify right side
   9,939.53x = 89,135,289.83
5. Step 5: Solve for x
   x = 89,135,289.83/9,939.53
6. Step 6: Final answer
   x = 8,967.76