Finding the Fourth Proportional to 8,308.02, 12,462.39 and 3,111.06

Step by Step Solution

1. Step 1: Write the proportion equation
   8,308.02 : 12,462.39 = 3,111.06 : x
2. Step 2: Convert to fraction form
   8,308.02/12,462.39 = 3,111.06/x
3. Step 3: Cross multiply
   8,308.02x = 12,462.39 × 3,111.06
4. Step 4: Simplify right side
   8,308.02x = 38,771,243.03
5. Step 5: Solve for x
   x = 38,771,243.03/8,308.02
6. Step 6: Final answer
   x = 4,666.72