Finding the Fourth Proportional to 50,020, 69,028.88 and 30,149.28

Step by Step Solution

1. Step 1: Write the proportion equation
   50,020 : 69,028.88 = 30,149.28 : x
2. Step 2: Convert to fraction form
   50,020/69,028.88 = 30,149.28/x
3. Step 3: Cross multiply
   50,020x = 69,028.88 × 30,149.28
4. Step 4: Simplify right side
   50,020x = 2,081,171,031.21
5. Step 5: Solve for x
   x = 2,081,171,031.21/50,020
6. Step 6: Final answer
   x = 41,606.78