Finding the Fourth Proportional to 50,755.72, 70,034.74 and 28,395.40

Step by Step Solution

1. Step 1: Write the proportion equation
   50,755.72 : 70,034.74 = 28,395.40 : x
2. Step 2: Convert to fraction form
   50,755.72/70,034.74 = 28,395.40/x
3. Step 3: Cross multiply
   50,755.72x = 70,034.74 × 28,395.40
4. Step 4: Simplify right side
   50,755.72x = 1,988,664,456.20
5. Step 5: Solve for x
   x = 1,988,664,456.20/50,755.72
6. Step 6: Final answer
   x = 39,181.09