Finding the Fourth Proportional to 42,328.80, 58,413.75 and 22,947.78

Step by Step Solution

1. Step 1: Write the proportion equation
   42,328.80 : 58,413.75 = 22,947.78 : x
2. Step 2: Convert to fraction form
   42,328.80/58,413.75 = 22,947.78/x
3. Step 3: Cross multiply
   42,328.80x = 58,413.75 × 22,947.78
4. Step 4: Simplify right side
   42,328.80x = 1,340,465,883.98
5. Step 5: Solve for x
   x = 1,340,465,883.98/42,328.80
6. Step 6: Final answer
   x = 31,667.94