Finding the Fourth Proportional to 321,100.48, 443,133.25 and 177,860.51

Step by Step Solution

1. Step 1: Write the proportion equation
   321,100.48 : 443,133.25 = 177,860.51 : x
2. Step 2: Convert to fraction form
   321,100.48/443,133.25 = 177,860.51/x
3. Step 3: Cross multiply
   321,100.48x = 443,133.25 × 177,860.51
4. Step 4: Simplify right side
   321,100.48x = 78,815,903,182.64
5. Step 5: Solve for x
   x = 78,815,903,182.64/321,100.48
6. Step 6: Final answer
   x = 245,455.58