Finding the Fourth Proportional to 321,679.45, 443,881.83 and 178,403.59

Step by Step Solution

1. Step 1: Write the proportion equation
   321,679.45 : 443,881.83 = 178,403.59 : x
2. Step 2: Convert to fraction form
   321,679.45/443,881.83 = 178,403.59/x
3. Step 3: Cross multiply
   321,679.45x = 443,881.83 × 178,403.59
4. Step 4: Simplify right side
   321,679.45x = 79,190,112,007.77
5. Step 5: Solve for x
   x = 79,190,112,007.77/321,679.45
6. Step 6: Final answer
   x = 246,177.09