Finding the Fourth Proportional to 321,350.90, 443,448.27 and 178,109.69

Step by Step Solution

1. Step 1: Write the proportion equation
   321,350.90 : 443,448.27 = 178,109.69 : x
2. Step 2: Convert to fraction form
   321,350.90/443,448.27 = 178,109.69/x
3. Step 3: Cross multiply
   321,350.90x = 443,448.27 × 178,109.69
4. Step 4: Simplify right side
   321,350.90x = 78,982,431,683.50
5. Step 5: Solve for x
   x = 78,982,431,683.50/321,350.90
6. Step 6: Final answer
   x = 245,782.52