Finding the Fourth Proportional to 82,717.40, 124,131.69 and 82,413.05

Step by Step Solution

1. Step 1: Write the proportion equation
   82,717.40 : 124,131.69 = 82,413.05 : x
2. Step 2: Convert to fraction form
   82,717.40/124,131.69 = 82,413.05/x
3. Step 3: Cross multiply
   82,717.40x = 124,131.69 × 82,413.05
4. Step 4: Simplify right side
   82,717.40x = 10,230,070,553.90
5. Step 5: Solve for x
   x = 10,230,070,553.90/82,717.40
6. Step 6: Final answer
   x = 123,674.95