Finding the Fourth Proportional to 8,022.96, 12,031.56 and 3,090.12

Step by Step Solution

1. Step 1: Write the proportion equation
   8,022.96 : 12,031.56 = 3,090.12 : x
2. Step 2: Convert to fraction form
   8,022.96/12,031.56 = 3,090.12/x
3. Step 3: Cross multiply
   8,022.96x = 12,031.56 × 3,090.12
4. Step 4: Simplify right side
   8,022.96x = 37,178,964.19
5. Step 5: Solve for x
   x = 37,178,964.19/8,022.96
6. Step 6: Final answer
   x = 4,634.07