Finding the Fourth Proportional to 321,386.47, 443,517.83 and 176,205.94

Step by Step Solution

1. Step 1: Write the proportion equation
   321,386.47 : 443,517.83 = 176,205.94 : x
2. Step 2: Convert to fraction form
   321,386.47/443,517.83 = 176,205.94/x
3. Step 3: Cross multiply
   321,386.47x = 443,517.83 × 176,205.94
4. Step 4: Simplify right side
   321,386.47x = 78,150,476,141.91
5. Step 5: Solve for x
   x = 78,150,476,141.91/321,386.47
6. Step 6: Final answer
   x = 243,166.67