Finding the Fourth Proportional to 123,920.69, 171,011.59 and 67,332.06

Step by Step Solution

1. Step 1: Write the proportion equation
   123,920.69 : 171,011.59 = 67,332.06 : x
2. Step 2: Convert to fraction form
   123,920.69/171,011.59 = 67,332.06/x
3. Step 3: Cross multiply
   123,920.69x = 171,011.59 × 67,332.06
4. Step 4: Simplify right side
   123,920.69x = 11,514,562,470.25
5. Step 5: Solve for x
   x = 11,514,562,470.25/123,920.69
6. Step 6: Final answer
   x = 92,918.81