Finding the Fourth Proportional to 8,020.82, 12,031.10 and 3,091.54

Step by Step Solution

1. Step 1: Write the proportion equation
   8,020.82 : 12,031.10 = 3,091.54 : x
2. Step 2: Convert to fraction form
   8,020.82/12,031.10 = 3,091.54/x
3. Step 3: Cross multiply
   8,020.82x = 12,031.10 × 3,091.54
4. Step 4: Simplify right side
   8,020.82x = 37,194,626.89
5. Step 5: Solve for x
   x = 37,194,626.89/8,020.82
6. Step 6: Final answer
   x = 4,637.26