Finding the Fourth Proportional to 12,087.79, 18,131.22 and 3,322.47

Step by Step Solution

1. Step 1: Write the proportion equation
   12,087.79 : 18,131.22 = 3,322.47 : x
2. Step 2: Convert to fraction form
   12,087.79/18,131.22 = 3,322.47/x
3. Step 3: Cross multiply
   12,087.79x = 18,131.22 × 3,322.47
4. Step 4: Simplify right side
   12,087.79x = 60,240,434.51
5. Step 5: Solve for x
   x = 60,240,434.51/12,087.79
6. Step 6: Final answer
   x = 4,983.58