Finding the Fourth Proportional to 50,436, 69,601.68 and 28,085.28

Step by Step Solution

1. Step 1: Write the proportion equation
   50,436 : 69,601.68 = 28,085.28 : x
2. Step 2: Convert to fraction form
   50,436/69,601.68 = 28,085.28/x
3. Step 3: Cross multiply
   50,436x = 69,601.68 × 28,085.28
4. Step 4: Simplify right side
   50,436x = 1,954,782,671.27
5. Step 5: Solve for x
   x = 1,954,782,671.27/50,436
6. Step 6: Final answer
   x = 38,757.69