Finding the Fourth Proportional to 50,086.33, 69,120.99 and 28,579.57

Step by Step Solution

1. Step 1: Write the proportion equation
   50,086.33 : 69,120.99 = 28,579.57 : x
2. Step 2: Convert to fraction form
   50,086.33/69,120.99 = 28,579.57/x
3. Step 3: Cross multiply
   50,086.33x = 69,120.99 × 28,579.57
4. Step 4: Simplify right side
   50,086.33x = 1,975,448,172.17
5. Step 5: Solve for x
   x = 1,975,448,172.17/50,086.33
6. Step 6: Final answer
   x = 39,440.87