Finding the Fourth Proportional to 20,728.24, 31,097.72 and 5,938.25

Step by Step Solution

1. Step 1: Write the proportion equation
   20,728.24 : 31,097.72 = 5,938.25 : x
2. Step 2: Convert to fraction form
   20,728.24/31,097.72 = 5,938.25/x
3. Step 3: Cross multiply
   20,728.24x = 31,097.72 × 5,938.25
4. Step 4: Simplify right side
   20,728.24x = 184,665,895.15
5. Step 5: Solve for x
   x = 184,665,895.15/20,728.24
6. Step 6: Final answer
   x = 8,908.90