Finding the Fourth Proportional to 321,628.73, 443,776.32 and 185,654.03

Step by Step Solution

1. Step 1: Write the proportion equation
   321,628.73 : 443,776.32 = 185,654.03 : x
2. Step 2: Convert to fraction form
   321,628.73/443,776.32 = 185,654.03/x
3. Step 3: Cross multiply
   321,628.73x = 443,776.32 × 185,654.03
4. Step 4: Simplify right side
   321,628.73x = 82,388,860,007.69
5. Step 5: Solve for x
   x = 82,388,860,007.69/321,628.73
6. Step 6: Final answer
   x = 256,161.39