Finding the Fourth Proportional to 85,413.98, 127,921.56 and 67,524.42

Step by Step Solution

1. Step 1: Write the proportion equation
   85,413.98 : 127,921.56 = 67,524.42 : x
2. Step 2: Convert to fraction form
   85,413.98/127,921.56 = 67,524.42/x
3. Step 3: Cross multiply
   85,413.98x = 127,921.56 × 67,524.42
4. Step 4: Simplify right side
   85,413.98x = 8,637,829,144.50
5. Step 5: Solve for x
   x = 8,637,829,144.50/85,413.98
6. Step 6: Final answer
   x = 101,128.99