Finding the Fourth Proportional to 78,964.59, 118,413.18 and 45,707.61

Step by Step Solution

1. Step 1: Write the proportion equation
   78,964.59 : 118,413.18 = 45,707.61 : x
2. Step 2: Convert to fraction form
   78,964.59/118,413.18 = 45,707.61/x
3. Step 3: Cross multiply
   78,964.59x = 118,413.18 × 45,707.61
4. Step 4: Simplify right side
   78,964.59x = 5,412,383,450.30
5. Step 5: Solve for x
   x = 5,412,383,450.30/78,964.59
6. Step 6: Final answer
   x = 68,541.91