Finding the Fourth Proportional to 10,144.54, 13,986.72 and 7,757.44

Step by Step Solution

1. Step 1: Write the proportion equation
   10,144.54 : 13,986.72 = 7,757.44 : x
2. Step 2: Convert to fraction form
   10,144.54/13,986.72 = 7,757.44/x
3. Step 3: Cross multiply
   10,144.54x = 13,986.72 × 7,757.44
4. Step 4: Simplify right side
   10,144.54x = 108,501,141.20
5. Step 5: Solve for x
   x = 108,501,141.20/10,144.54
6. Step 6: Final answer
   x = 10,695.52