Finding the Fourth Proportional to 139,413.74, 209,003.04 and 60,468.53

Step by Step Solution

1. Step 1: Write the proportion equation
   139,413.74 : 209,003.04 = 60,468.53 : x
2. Step 2: Convert to fraction form
   139,413.74/209,003.04 = 60,468.53/x
3. Step 3: Cross multiply
   139,413.74x = 209,003.04 × 60,468.53
4. Step 4: Simplify right side
   139,413.74x = 12,638,105,549.32
5. Step 5: Solve for x
   x = 12,638,105,549.32/139,413.74
6. Step 6: Final answer
   x = 90,651.80