Finding the Fourth Proportional to 50,790, 76,185.18 and 13,854

Step by Step Solution

1. Step 1: Write the proportion equation
   50,790 : 76,185.18 = 13,854 : x
2. Step 2: Convert to fraction form
   50,790/76,185.18 = 13,854/x
3. Step 3: Cross multiply
   50,790x = 76,185.18 × 13,854
4. Step 4: Simplify right side
   50,790x = 1,055,469,483.72
5. Step 5: Solve for x
   x = 1,055,469,483.72/50,790
6. Step 6: Final answer
   x = 20,781.05