Finding the Fourth Proportional to 321,073.38, 443,079.90 and 185,106.42

Step by Step Solution

1. Step 1: Write the proportion equation
   321,073.38 : 443,079.90 = 185,106.42 : x
2. Step 2: Convert to fraction form
   321,073.38/443,079.90 = 185,106.42/x
3. Step 3: Cross multiply
   321,073.38x = 443,079.90 × 185,106.42
4. Step 4: Simplify right side
   321,073.38x = 82,016,934,062.96
5. Step 5: Solve for x
   x = 82,016,934,062.96/321,073.38
6. Step 6: Final answer
   x = 255,446.07