Finding the Fourth Proportional to 419,654.93, 579,105.69 and 238,366.29

Step by Step Solution

1. Step 1: Write the proportion equation
   419,654.93 : 579,105.69 = 238,366.29 : x
2. Step 2: Convert to fraction form
   419,654.93/579,105.69 = 238,366.29/x
3. Step 3: Cross multiply
   419,654.93x = 579,105.69 × 238,366.29
4. Step 4: Simplify right side
   419,654.93x = 138,039,274,247.27
5. Step 5: Solve for x
   x = 138,039,274,247.27/419,654.93
6. Step 6: Final answer
   x = 328,935.19