Finding the Fourth Proportional to 89,698.30, 123,784.50 and 49,413.49

Step by Step Solution

1. Step 1: Write the proportion equation
   89,698.30 : 123,784.50 = 49,413.49 : x
2. Step 2: Convert to fraction form
   89,698.30/123,784.50 = 49,413.49/x
3. Step 3: Cross multiply
   89,698.30x = 123,784.50 × 49,413.49
4. Step 4: Simplify right side
   89,698.30x = 6,116,624,152.91
5. Step 5: Solve for x
   x = 6,116,624,152.91/89,698.30
6. Step 6: Final answer
   x = 68,191.08