Finding the Fourth Proportional to 124,009.23, 171,131.89 and 67,420.61

Step by Step Solution

1. Step 1: Write the proportion equation
   124,009.23 : 171,131.89 = 67,420.61 : x
2. Step 2: Convert to fraction form
   124,009.23/171,131.89 = 67,420.61/x
3. Step 3: Cross multiply
   124,009.23x = 171,131.89 × 67,420.61
4. Step 4: Simplify right side
   124,009.23x = 11,537,816,414.25
5. Step 5: Solve for x
   x = 11,537,816,414.25/124,009.23
6. Step 6: Final answer
   x = 93,039.98