Finding the Fourth Proportional to 50,463.68, 69,641.76 and 28,109.12

Step by Step Solution

1. Step 1: Write the proportion equation
   50,463.68 : 69,641.76 = 28,109.12 : x
2. Step 2: Convert to fraction form
   50,463.68/69,641.76 = 28,109.12/x
3. Step 3: Cross multiply
   50,463.68x = 69,641.76 × 28,109.12
4. Step 4: Simplify right side
   50,463.68x = 1,957,568,588.85
5. Step 5: Solve for x
   x = 1,957,568,588.85/50,463.68
6. Step 6: Final answer
   x = 38,791.63