Finding the Fourth Proportional to 139,413.82, 209,003.18 and 60,468.59

Step by Step Solution

1. Step 1: Write the proportion equation
   139,413.82 : 209,003.18 = 60,468.59 : x
2. Step 2: Convert to fraction form
   139,413.82/209,003.18 = 60,468.59/x
3. Step 3: Cross multiply
   139,413.82x = 209,003.18 × 60,468.59
4. Step 4: Simplify right side
   139,413.82x = 12,638,127,297.77
5. Step 5: Solve for x
   x = 12,638,127,297.77/139,413.82
6. Step 6: Final answer
   x = 90,651.90