Finding the Fourth Proportional to 321,146.24, 443,181.72 and 177,915.56

Step by Step Solution

1. Step 1: Write the proportion equation
   321,146.24 : 443,181.72 = 177,915.56 : x
2. Step 2: Convert to fraction form
   321,146.24/443,181.72 = 177,915.56/x
3. Step 3: Cross multiply
   321,146.24x = 443,181.72 × 177,915.56
4. Step 4: Simplify right side
   321,146.24x = 78,848,923,895.56
5. Step 5: Solve for x
   x = 78,848,923,895.56/321,146.24
6. Step 6: Final answer
   x = 245,523.42