Finding the Fourth Proportional to 50,530.71, 69,759.72 and 30,392.09

Step by Step Solution

1. Step 1: Write the proportion equation
   50,530.71 : 69,759.72 = 30,392.09 : x
2. Step 2: Convert to fraction form
   50,530.71/69,759.72 = 30,392.09/x
3. Step 3: Cross multiply
   50,530.71x = 69,759.72 × 30,392.09
4. Step 4: Simplify right side
   50,530.71x = 2,120,143,362.48
5. Step 5: Solve for x
   x = 2,120,143,362.48/50,530.71
6. Step 6: Final answer
   x = 41,957.52