Finding the Fourth Proportional to 50,680.56, 69,939.28 and 28,324.56

Step by Step Solution

1. Step 1: Write the proportion equation
   50,680.56 : 69,939.28 = 28,324.56 : x
2. Step 2: Convert to fraction form
   50,680.56/69,939.28 = 28,324.56/x
3. Step 3: Cross multiply
   50,680.56x = 69,939.28 × 28,324.56
4. Step 4: Simplify right side
   50,680.56x = 1,980,999,332.72
5. Step 5: Solve for x
   x = 1,980,999,332.72/50,680.56
6. Step 6: Final answer
   x = 39,087.95