Finding the Fourth Proportional to 50,157.69, 69,218.34 and 30,015.42

Step by Step Solution

1. Step 1: Write the proportion equation
   50,157.69 : 69,218.34 = 30,015.42 : x
2. Step 2: Convert to fraction form
   50,157.69/69,218.34 = 30,015.42/x
3. Step 3: Cross multiply
   50,157.69x = 69,218.34 × 30,015.42
4. Step 4: Simplify right side
   50,157.69x = 2,077,617,546.80
5. Step 5: Solve for x
   x = 2,077,617,546.80/50,157.69
6. Step 6: Final answer
   x = 41,421.72