Finding the Fourth Proportional to 443,331.94, 665,139.57 and 158,830.42

Step by Step Solution

1. Step 1: Write the proportion equation
   443,331.94 : 665,139.57 = 158,830.42 : x
2. Step 2: Convert to fraction form
   443,331.94/665,139.57 = 158,830.42/x
3. Step 3: Cross multiply
   443,331.94x = 665,139.57 × 158,830.42
4. Step 4: Simplify right side
   443,331.94x = 105,644,397,261.72
5. Step 5: Solve for x
   x = 105,644,397,261.72/443,331.94
6. Step 6: Final answer
   x = 238,296.38