Finding the Fourth Proportional to 151,398.05, 208,928.30 and 83,413.48

Step by Step Solution

1. Step 1: Write the proportion equation
   151,398.05 : 208,928.30 = 83,413.48 : x
2. Step 2: Convert to fraction form
   151,398.05/208,928.30 = 83,413.48/x
3. Step 3: Cross multiply
   151,398.05x = 208,928.30 × 83,413.48
4. Step 4: Simplify right side
   151,398.05x = 17,427,436,573.48
5. Step 5: Solve for x
   x = 17,427,436,573.48/151,398.05
6. Step 6: Final answer
   x = 115,110.05