Finding the Fourth Proportional to 321,057.68, 443,063.13 and 177,819.98

Step by Step Solution

1. Step 1: Write the proportion equation
   321,057.68 : 443,063.13 = 177,819.98 : x
2. Step 2: Convert to fraction form
   321,057.68/443,063.13 = 177,819.98/x
3. Step 3: Cross multiply
   321,057.68x = 443,063.13 × 177,819.98
4. Step 4: Simplify right side
   321,057.68x = 78,785,476,915.34
5. Step 5: Solve for x
   x = 78,785,476,915.34/321,057.68
6. Step 6: Final answer
   x = 245,393.53