Finding the Fourth Proportional to 89,230.82, 123,142.38 and 53,413.91

Step by Step Solution

1. Step 1: Write the proportion equation
   89,230.82 : 123,142.38 = 53,413.91 : x
2. Step 2: Convert to fraction form
   89,230.82/123,142.38 = 53,413.91/x
3. Step 3: Cross multiply
   89,230.82x = 123,142.38 × 53,413.91
4. Step 4: Simplify right side
   89,230.82x = 6,577,515,301.94
5. Step 5: Solve for x
   x = 6,577,515,301.94/89,230.82
6. Step 6: Final answer
   x = 73,713.50