Finding the Fourth Proportional to 10,968.72, 16,454.16 and 3,178.68

Step by Step Solution

1. Step 1: Write the proportion equation
   10,968.72 : 16,454.16 = 3,178.68 : x
2. Step 2: Convert to fraction form
   10,968.72/16,454.16 = 3,178.68/x
3. Step 3: Cross multiply
   10,968.72x = 16,454.16 × 3,178.68
4. Step 4: Simplify right side
   10,968.72x = 52,302,509.31
5. Step 5: Solve for x
   x = 52,302,509.31/10,968.72
6. Step 6: Final answer
   x = 4,768.33