Finding the Fourth Proportional to 321,607.34, 443,845.37 and 178,413.50

Step by Step Solution

1. Step 1: Write the proportion equation
   321,607.34 : 443,845.37 = 178,413.50 : x
2. Step 2: Convert to fraction form
   321,607.34/443,845.37 = 178,413.50/x
3. Step 3: Cross multiply
   321,607.34x = 443,845.37 × 178,413.50
4. Step 4: Simplify right side
   321,607.34x = 79,188,005,028.43
5. Step 5: Solve for x
   x = 79,188,005,028.43/321,607.34
6. Step 6: Final answer
   x = 246,225.74