Finding the Fourth Proportional to 50,667.12, 69,913.48 and 28,863.97

Step by Step Solution

1. Step 1: Write the proportion equation
   50,667.12 : 69,913.48 = 28,863.97 : x
2. Step 2: Convert to fraction form
   50,667.12/69,913.48 = 28,863.97/x
3. Step 3: Cross multiply
   50,667.12x = 69,913.48 × 28,863.97
4. Step 4: Simplify right side
   50,667.12x = 2,017,980,342.37
5. Step 5: Solve for x
   x = 2,017,980,342.37/50,667.12
6. Step 6: Final answer
   x = 39,828.20