Finding the Fourth Proportional to 50,443.12, 69,608.82 and 28,931.75

Step by Step Solution

1. Step 1: Write the proportion equation
   50,443.12 : 69,608.82 = 28,931.75 : x
2. Step 2: Convert to fraction form
   50,443.12/69,608.82 = 28,931.75/x
3. Step 3: Cross multiply
   50,443.12x = 69,608.82 × 28,931.75
4. Step 4: Simplify right side
   50,443.12x = 2,013,904,659.35
5. Step 5: Solve for x
   x = 2,013,904,659.35/50,443.12
6. Step 6: Final answer
   x = 39,924.27