Finding the Fourth Proportional to 50,760.42, 76,140.72 and 13,824.42

Step by Step Solution

1. Step 1: Write the proportion equation
   50,760.42 : 76,140.72 = 13,824.42 : x
2. Step 2: Convert to fraction form
   50,760.42/76,140.72 = 13,824.42/x
3. Step 3: Cross multiply
   50,760.42x = 76,140.72 × 13,824.42
4. Step 4: Simplify right side
   50,760.42x = 1,052,601,292.38
5. Step 5: Solve for x
   x = 1,052,601,292.38/50,760.42
6. Step 6: Final answer
   x = 20,736.65