Finding the Fourth Proportional to 321,381.34, 443,527.59 and 178,147.42

Step by Step Solution

1. Step 1: Write the proportion equation
   321,381.34 : 443,527.59 = 178,147.42 : x
2. Step 2: Convert to fraction form
   321,381.34/443,527.59 = 178,147.42/x
3. Step 3: Cross multiply
   321,381.34x = 443,527.59 × 178,147.42
4. Step 4: Simplify right side
   321,381.34x = 79,013,295,857.32
5. Step 5: Solve for x
   x = 79,013,295,857.32/321,381.34
6. Step 6: Final answer
   x = 245,855.27