Finding the Fourth Proportional to 321,595.59, 443,829.15 and 178,401.75

Step by Step Solution

1. Step 1: Write the proportion equation
   321,595.59 : 443,829.15 = 178,401.75 : x
2. Step 2: Convert to fraction form
   321,595.59/443,829.15 = 178,401.75/x
3. Step 3: Cross multiply
   321,595.59x = 443,829.15 × 178,401.75
4. Step 4: Simplify right side
   321,595.59x = 79,179,897,061.01
5. Step 5: Solve for x
   x = 79,179,897,061.01/321,595.59
6. Step 6: Final answer
   x = 246,209.52