Finding the Fourth Proportional to 321,417.18, 443,552.22 and 185,449.50

Step by Step Solution

1. Step 1: Write the proportion equation
   321,417.18 : 443,552.22 = 185,449.50 : x
2. Step 2: Convert to fraction form
   321,417.18/443,552.22 = 185,449.50/x
3. Step 3: Cross multiply
   321,417.18x = 443,552.22 × 185,449.50
4. Step 4: Simplify right side
   321,417.18x = 82,256,537,422.89
5. Step 5: Solve for x
   x = 82,256,537,422.89/321,417.18
6. Step 6: Final answer
   x = 255,918.30