Finding the Fourth Proportional to 123,629.49, 185,382.71 and 39,378.74

Step by Step Solution

1. Step 1: Write the proportion equation
   123,629.49 : 185,382.71 = 39,378.74 : x
2. Step 2: Convert to fraction form
   123,629.49/185,382.71 = 39,378.74/x
3. Step 3: Cross multiply
   123,629.49x = 185,382.71 × 39,378.74
4. Step 4: Simplify right side
   123,629.49x = 7,300,136,413.78
5. Step 5: Solve for x
   x = 7,300,136,413.78/123,629.49
6. Step 6: Final answer
   x = 59,048.50