Finding the Fourth Proportional to 50,465.50, 69,642.42 and 28,109.50

Step by Step Solution

1. Step 1: Write the proportion equation
   50,465.50 : 69,642.42 = 28,109.50 : x
2. Step 2: Convert to fraction form
   50,465.50/69,642.42 = 28,109.50/x
3. Step 3: Cross multiply
   50,465.50x = 69,642.42 × 28,109.50
4. Step 4: Simplify right side
   50,465.50x = 1,957,613,604.99
5. Step 5: Solve for x
   x = 1,957,613,604.99/50,465.50
6. Step 6: Final answer
   x = 38,791.13