Finding the Fourth Proportional to 42,413.75, 58,504.91 and 30,493.07

Step by Step Solution

1. Step 1: Write the proportion equation
   42,413.75 : 58,504.91 = 30,493.07 : x
2. Step 2: Convert to fraction form
   42,413.75/58,504.91 = 30,493.07/x
3. Step 3: Cross multiply
   42,413.75x = 58,504.91 × 30,493.07
4. Step 4: Simplify right side
   42,413.75x = 1,783,994,315.97
5. Step 5: Solve for x
   x = 1,783,994,315.97/42,413.75
6. Step 6: Final answer
   x = 42,061.70