Finding the Fourth Proportional to 10,935.90, 16,403.88 and 3,144.54

Step by Step Solution

1. Step 1: Write the proportion equation
   10,935.90 : 16,403.88 = 3,144.54 : x
2. Step 2: Convert to fraction form
   10,935.90/16,403.88 = 3,144.54/x
3. Step 3: Cross multiply
   10,935.90x = 16,403.88 × 3,144.54
4. Step 4: Simplify right side
   10,935.90x = 51,582,656.82
5. Step 5: Solve for x
   x = 51,582,656.82/10,935.90
6. Step 6: Final answer
   x = 4,716.82