Finding the Fourth Proportional to 80,196.72, 120,322.23 and 30,291.22

Step by Step Solution

1. Step 1: Write the proportion equation
   80,196.72 : 120,322.23 = 30,291.22 : x
2. Step 2: Convert to fraction form
   80,196.72/120,322.23 = 30,291.22/x
3. Step 3: Cross multiply
   80,196.72x = 120,322.23 × 30,291.22
4. Step 4: Simplify right side
   80,196.72x = 3,644,707,139.82
5. Step 5: Solve for x
   x = 3,644,707,139.82/80,196.72
6. Step 6: Final answer
   x = 45,447.08