Finding the Fourth Proportional to 321,410.94, 443,517.28 and 178,158.79

Step by Step Solution

1. Step 1: Write the proportion equation
   321,410.94 : 443,517.28 = 178,158.79 : x
2. Step 2: Convert to fraction form
   321,410.94/443,517.28 = 178,158.79/x
3. Step 3: Cross multiply
   321,410.94x = 443,517.28 × 178,158.79
4. Step 4: Simplify right side
   321,410.94x = 79,016,501,948.89
5. Step 5: Solve for x
   x = 79,016,501,948.89/321,410.94
6. Step 6: Final answer
   x = 245,842.60