Finding the Fourth Proportional to 231,674.27, 319,692.83 and 129,676.37

Step by Step Solution

1. Step 1: Write the proportion equation
   231,674.27 : 319,692.83 = 129,676.37 : x
2. Step 2: Convert to fraction form
   231,674.27/319,692.83 = 129,676.37/x
3. Step 3: Cross multiply
   231,674.27x = 319,692.83 × 129,676.37
4. Step 4: Simplify right side
   231,674.27x = 41,456,603,462.58
5. Step 5: Solve for x
   x = 41,456,603,462.58/231,674.27
6. Step 6: Final answer
   x = 178,943.50