Finding the Fourth Proportional to 50,892.88, 70,215.37 and 30,742.11

Step by Step Solution

1. Step 1: Write the proportion equation
   50,892.88 : 70,215.37 = 30,742.11 : x
2. Step 2: Convert to fraction form
   50,892.88/70,215.37 = 30,742.11/x
3. Step 3: Cross multiply
   50,892.88x = 70,215.37 × 30,742.11
4. Step 4: Simplify right side
   50,892.88x = 2,158,568,123.44
5. Step 5: Solve for x
   x = 2,158,568,123.44/50,892.88
6. Step 6: Final answer
   x = 42,413.95