Finding the Fourth Proportional to 321,714.99, 443,978.55 and 194,365.98

Step by Step Solution

1. Step 1: Write the proportion equation
   321,714.99 : 443,978.55 = 194,365.98 : x
2. Step 2: Convert to fraction form
   321,714.99/443,978.55 = 194,365.98/x
3. Step 3: Cross multiply
   321,714.99x = 443,978.55 × 194,365.98
4. Step 4: Simplify right side
   321,714.99x = 86,294,325,969.73
5. Step 5: Solve for x
   x = 86,294,325,969.73/321,714.99
6. Step 6: Final answer
   x = 268,232.22