Finding the Fourth Proportional to 78,570, 117,858.66 and 22,413.96

Step by Step Solution

1. Step 1: Write the proportion equation
   78,570 : 117,858.66 = 22,413.96 : x
2. Step 2: Convert to fraction form
   78,570/117,858.66 = 22,413.96/x
3. Step 3: Cross multiply
   78,570x = 117,858.66 × 22,413.96
4. Step 4: Simplify right side
   78,570x = 2,641,679,290.89
5. Step 5: Solve for x
   x = 2,641,679,290.89/78,570
6. Step 6: Final answer
   x = 33,621.98