Finding the Fourth Proportional to 123,920.30, 171,010.47 and 67,331.67

Step by Step Solution

1. Step 1: Write the proportion equation
   123,920.30 : 171,010.47 = 67,331.67 : x
2. Step 2: Convert to fraction form
   123,920.30/171,010.47 = 67,331.67/x
3. Step 3: Cross multiply
   123,920.30x = 171,010.47 × 67,331.67
4. Step 4: Simplify right side
   123,920.30x = 11,514,421,105.72
5. Step 5: Solve for x
   x = 11,514,421,105.72/123,920.30
6. Step 6: Final answer
   x = 92,917.96