Finding the Fourth Proportional to 82,273.10, 123,413.70 and 42,907.10

Step by Step Solution

1. Step 1: Write the proportion equation
   82,273.10 : 123,413.70 = 42,907.10 : x
2. Step 2: Convert to fraction form
   82,273.10/123,413.70 = 42,907.10/x
3. Step 3: Cross multiply
   82,273.10x = 123,413.70 × 42,907.10
4. Step 4: Simplify right side
   82,273.10x = 5,295,323,967.27
5. Step 5: Solve for x
   x = 5,295,323,967.27/82,273.10
6. Step 6: Final answer
   x = 64,362.76