Finding the Fourth Proportional to 321,196.70, 443,255.01 and 177,959

Step by Step Solution

1. Step 1: Write the proportion equation
   321,196.70 : 443,255.01 = 177,959 : x
2. Step 2: Convert to fraction form
   321,196.70/443,255.01 = 177,959/x
3. Step 3: Cross multiply
   321,196.70x = 443,255.01 × 177,959
4. Step 4: Simplify right side
   321,196.70x = 78,881,218,324.59
5. Step 5: Solve for x
   x = 78,881,218,324.59/321,196.70
6. Step 6: Final answer
   x = 245,585.39