Finding the Fourth Proportional to 50,680.57, 69,939.27 and 28,324.57

Step by Step Solution

1. Step 1: Write the proportion equation
   50,680.57 : 69,939.27 = 28,324.57 : x
2. Step 2: Convert to fraction form
   50,680.57/69,939.27 = 28,324.57/x
3. Step 3: Cross multiply
   50,680.57x = 69,939.27 × 28,324.57
4. Step 4: Simplify right side
   50,680.57x = 1,980,999,748.86
5. Step 5: Solve for x
   x = 1,980,999,748.86/50,680.57
6. Step 6: Final answer
   x = 39,087.95