Finding the Fourth Proportional to 321,068.54, 443,055.12 and 177,820.04

Step by Step Solution

1. Step 1: Write the proportion equation
   321,068.54 : 443,055.12 = 177,820.04 : x
2. Step 2: Convert to fraction form
   321,068.54/443,055.12 = 177,820.04/x
3. Step 3: Cross multiply
   321,068.54x = 443,055.12 × 177,820.04
4. Step 4: Simplify right side
   321,068.54x = 78,784,079,160.60
5. Step 5: Solve for x
   x = 78,784,079,160.60/321,068.54
6. Step 6: Final answer
   x = 245,380.87