Finding the Fourth Proportional to 78,964.57, 118,413.12 and 45,707.59

Step by Step Solution

1. Step 1: Write the proportion equation
   78,964.57 : 118,413.12 = 45,707.59 : x
2. Step 2: Convert to fraction form
   78,964.57/118,413.12 = 45,707.59/x
3. Step 3: Cross multiply
   78,964.57x = 118,413.12 × 45,707.59
4. Step 4: Simplify right side
   78,964.57x = 5,412,378,339.58
5. Step 5: Solve for x
   x = 5,412,378,339.58/78,964.57
6. Step 6: Final answer
   x = 68,541.86