Finding the Fourth Proportional to 321,150.36, 443,187.18 and 177,919.32

Step by Step Solution

1. Step 1: Write the proportion equation
   321,150.36 : 443,187.18 = 177,919.32 : x
2. Step 2: Convert to fraction form
   321,150.36/443,187.18 = 177,919.32/x
3. Step 3: Cross multiply
   321,150.36x = 443,187.18 × 177,919.32
4. Step 4: Simplify right side
   321,150.36x = 78,851,561,698.32
5. Step 5: Solve for x
   x = 78,851,561,698.32/321,150.36
6. Step 6: Final answer
   x = 245,528.49