Finding the Fourth Proportional to 321,320.31, 443,320.71 and 185,336.03

Step by Step Solution

1. Step 1: Write the proportion equation
   321,320.31 : 443,320.71 = 185,336.03 : x
2. Step 2: Convert to fraction form
   321,320.31/443,320.71 = 185,336.03/x
3. Step 3: Cross multiply
   321,320.31x = 443,320.71 × 185,336.03
4. Step 4: Simplify right side
   321,320.31x = 82,163,298,191.58
5. Step 5: Solve for x
   x = 82,163,298,191.58/321,320.31
6. Step 6: Final answer
   x = 255,705.27