Finding the Fourth Proportional to 13,744.56, 18,967.23 and 7,776.12

Step by Step Solution

1. Step 1: Write the proportion equation
   13,744.56 : 18,967.23 = 7,776.12 : x
2. Step 2: Convert to fraction form
   13,744.56/18,967.23 = 7,776.12/x
3. Step 3: Cross multiply
   13,744.56x = 18,967.23 × 7,776.12
4. Step 4: Simplify right side
   13,744.56x = 147,491,456.55
5. Step 5: Solve for x
   x = 147,491,456.55/13,744.56
6. Step 6: Final answer
   x = 10,730.90