Finding the Fourth Proportional to 12,087.60, 18,130.94 and 3,322.28

Step by Step Solution

1. Step 1: Write the proportion equation
   12,087.60 : 18,130.94 = 3,322.28 : x
2. Step 2: Convert to fraction form
   12,087.60/18,130.94 = 3,322.28/x
3. Step 3: Cross multiply
   12,087.60x = 18,130.94 × 3,322.28
4. Step 4: Simplify right side
   12,087.60x = 60,236,100.52
5. Step 5: Solve for x
   x = 60,236,100.52/12,087.60
6. Step 6: Final answer
   x = 4,983.30