Finding the Fourth Proportional to 50,119.55, 69,138.78 and 30,993.22

Step by Step Solution

1. Step 1: Write the proportion equation
   50,119.55 : 69,138.78 = 30,993.22 : x
2. Step 2: Convert to fraction form
   50,119.55/69,138.78 = 30,993.22/x
3. Step 3: Cross multiply
   50,119.55x = 69,138.78 × 30,993.22
4. Step 4: Simplify right side
   50,119.55x = 2,142,833,419.07
5. Step 5: Solve for x
   x = 2,142,833,419.07/50,119.55
6. Step 6: Final answer
   x = 42,754.44