Finding the Fourth Proportional to 12,086.32, 18,129.56 and 3,322.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,086.32 : 18,129.56 = 3,322.16 : x
2. Step 2: Convert to fraction form
   12,086.32/18,129.56 = 3,322.16/x
3. Step 3: Cross multiply
   12,086.32x = 18,129.56 × 3,322.16
4. Step 4: Simplify right side
   12,086.32x = 60,229,299.05
5. Step 5: Solve for x
   x = 60,229,299.05/12,086.32
6. Step 6: Final answer
   x = 4,983.26