Finding the Fourth Proportional to 85,413.30, 127,925.55 and 83,469.30

Step by Step Solution

1. Step 1: Write the proportion equation
   85,413.30 : 127,925.55 = 83,469.30 : x
2. Step 2: Convert to fraction form
   85,413.30/127,925.55 = 83,469.30/x
3. Step 3: Cross multiply
   85,413.30x = 127,925.55 × 83,469.30
4. Step 4: Simplify right side
   85,413.30x = 10,677,856,110.62
5. Step 5: Solve for x
   x = 10,677,856,110.62/85,413.30
6. Step 6: Final answer
   x = 125,013.97