Finding the Fourth Proportional to 132,413.38, 182,716.82 and 78,688.06

Step by Step Solution

1. Step 1: Write the proportion equation
   132,413.38 : 182,716.82 = 78,688.06 : x
2. Step 2: Convert to fraction form
   132,413.38/182,716.82 = 78,688.06/x
3. Step 3: Cross multiply
   132,413.38x = 182,716.82 × 78,688.06
4. Step 4: Simplify right side
   132,413.38x = 14,377,632,095.17
5. Step 5: Solve for x
   x = 14,377,632,095.17/132,413.38
6. Step 6: Final answer
   x = 108,581.41