Finding the Fourth Proportional to 20,735.78, 31,100.76 and 5,945.96

Step by Step Solution

1. Step 1: Write the proportion equation
   20,735.78 : 31,100.76 = 5,945.96 : x
2. Step 2: Convert to fraction form
   20,735.78/31,100.76 = 5,945.96/x
3. Step 3: Cross multiply
   20,735.78x = 31,100.76 × 5,945.96
4. Step 4: Simplify right side
   20,735.78x = 184,923,874.93
5. Step 5: Solve for x
   x = 184,923,874.93/20,735.78
6. Step 6: Final answer
   x = 8,918.11