Finding the Fourth Proportional to 8,142.48, 12,208.10 and 3,461.36

Step by Step Solution

1. Step 1: Write the proportion equation
   8,142.48 : 12,208.10 = 3,461.36 : x
2. Step 2: Convert to fraction form
   8,142.48/12,208.10 = 3,461.36/x
3. Step 3: Cross multiply
   8,142.48x = 12,208.10 × 3,461.36
4. Step 4: Simplify right side
   8,142.48x = 42,256,629.02
5. Step 5: Solve for x
   x = 42,256,629.02/8,142.48
6. Step 6: Final answer
   x = 5,189.65