Finding the Fourth Proportional to 50,680.78, 69,937.39 and 28,018.29

Step by Step Solution

1. Step 1: Write the proportion equation
   50,680.78 : 69,937.39 = 28,018.29 : x
2. Step 2: Convert to fraction form
   50,680.78/69,937.39 = 28,018.29/x
3. Step 3: Cross multiply
   50,680.78x = 69,937.39 × 28,018.29
4. Step 4: Simplify right side
   50,680.78x = 1,959,526,074.86
5. Step 5: Solve for x
   x = 1,959,526,074.86/50,680.78
6. Step 6: Final answer
   x = 38,664.09