Finding the Fourth Proportional to 12,116, 18,174 and 3,908

Step by Step Solution

1. Step 1: Write the proportion equation
   12,116 : 18,174 = 3,908 : x
2. Step 2: Convert to fraction form
   12,116/18,174 = 3,908/x
3. Step 3: Cross multiply
   12,116x = 18,174 × 3,908
4. Step 4: Simplify right side
   12,116x = 71,023,992
5. Step 5: Solve for x
   x = 71,023,992/12,116
6. Step 6: Final answer
   x = 5,862