Finding the Fourth Proportional to 321,636.42, 443,878.38 and 185,695.23

Step by Step Solution

1. Step 1: Write the proportion equation
   321,636.42 : 443,878.38 = 185,695.23 : x
2. Step 2: Convert to fraction form
   321,636.42/443,878.38 = 185,695.23/x
3. Step 3: Cross multiply
   321,636.42x = 443,878.38 × 185,695.23
4. Step 4: Simplify right side
   321,636.42x = 82,426,099,530.67
5. Step 5: Solve for x
   x = 82,426,099,530.67/321,636.42
6. Step 6: Final answer
   x = 256,271.04