Finding the Fourth Proportional to 8,112.24, 12,166.20 and 3,494.16

Step by Step Solution

1. Step 1: Write the proportion equation
   8,112.24 : 12,166.20 = 3,494.16 : x
2. Step 2: Convert to fraction form
   8,112.24/12,166.20 = 3,494.16/x
3. Step 3: Cross multiply
   8,112.24x = 12,166.20 × 3,494.16
4. Step 4: Simplify right side
   8,112.24x = 42,510,649.39
5. Step 5: Solve for x
   x = 42,510,649.39/8,112.24
6. Step 6: Final answer
   x = 5,240.31