Finding the Fourth Proportional to 321,499.73, 443,663.02 and 178,258.52

Step by Step Solution

1. Step 1: Write the proportion equation
   321,499.73 : 443,663.02 = 178,258.52 : x
2. Step 2: Convert to fraction form
   321,499.73/443,663.02 = 178,258.52/x
3. Step 3: Cross multiply
   321,499.73x = 443,663.02 × 178,258.52
4. Step 4: Simplify right side
   321,499.73x = 79,086,714,655.91
5. Step 5: Solve for x
   x = 79,086,714,655.91/321,499.73
6. Step 6: Final answer
   x = 245,993.10