Finding the Fourth Proportional to 49,783.89, 74,674.89 and 12,344.07

Step by Step Solution

1. Step 1: Write the proportion equation
   49,783.89 : 74,674.89 = 12,344.07 : x
2. Step 2: Convert to fraction form
   49,783.89/74,674.89 = 12,344.07/x
3. Step 3: Cross multiply
   49,783.89x = 74,674.89 × 12,344.07
4. Step 4: Simplify right side
   49,783.89x = 921,792,069.40
5. Step 5: Solve for x
   x = 921,792,069.40/49,783.89
6. Step 6: Final answer
   x = 18,515.87