Finding the Fourth Proportional to 321,056.01, 443,060.55 and 193,707

Step by Step Solution

1. Step 1: Write the proportion equation
   321,056.01 : 443,060.55 = 193,707 : x
2. Step 2: Convert to fraction form
   321,056.01/443,060.55 = 193,707/x
3. Step 3: Cross multiply
   321,056.01x = 443,060.55 × 193,707
4. Step 4: Simplify right side
   321,056.01x = 85,823,929,958.85
5. Step 5: Solve for x
   x = 85,823,929,958.85/321,056.01
6. Step 6: Final answer
   x = 267,317.62