Finding the Fourth Proportional to 321,637.55, 443,879.96 and 185,696.42

Step by Step Solution

1. Step 1: Write the proportion equation
   321,637.55 : 443,879.96 = 185,696.42 : x
2. Step 2: Convert to fraction form
   321,637.55/443,879.96 = 185,696.42/x
3. Step 3: Cross multiply
   321,637.55x = 443,879.96 × 185,696.42
4. Step 4: Simplify right side
   321,637.55x = 82,426,916,333.86
5. Step 5: Solve for x
   x = 82,426,916,333.86/321,637.55
6. Step 6: Final answer
   x = 256,272.68