Finding the Fourth Proportional to 195,553.76, 293,414.93 and 105,578.61

Step by Step Solution

1. Step 1: Write the proportion equation
   195,553.76 : 293,414.93 = 105,578.61 : x
2. Step 2: Convert to fraction form
   195,553.76/293,414.93 = 105,578.61/x
3. Step 3: Cross multiply
   195,553.76x = 293,414.93 × 105,578.61
4. Step 4: Simplify right side
   195,553.76x = 30,978,338,933.43
5. Step 5: Solve for x
   x = 30,978,338,933.43/195,553.76
6. Step 6: Final answer
   x = 158,413.41