Finding the Fourth Proportional to 321,235.40, 443,304.42 and 178,004.72

Step by Step Solution

1. Step 1: Write the proportion equation
   321,235.40 : 443,304.42 = 178,004.72 : x
2. Step 2: Convert to fraction form
   321,235.40/443,304.42 = 178,004.72/x
3. Step 3: Cross multiply
   321,235.40x = 443,304.42 × 178,004.72
4. Step 4: Simplify right side
   321,235.40x = 78,910,279,156.86
5. Step 5: Solve for x
   x = 78,910,279,156.86/321,235.40
6. Step 6: Final answer
   x = 245,646.27