Finding the Fourth Proportional to 139,413.33, 209,118.15 and 34,233.21

Step by Step Solution

1. Step 1: Write the proportion equation
   139,413.33 : 209,118.15 = 34,233.21 : x
2. Step 2: Convert to fraction form
   139,413.33/209,118.15 = 34,233.21/x
3. Step 3: Cross multiply
   139,413.33x = 209,118.15 × 34,233.21
4. Step 4: Simplify right side
   139,413.33x = 7,158,785,543.76
5. Step 5: Solve for x
   x = 7,158,785,543.76/139,413.33
6. Step 6: Final answer
   x = 51,349.36