Finding the Fourth Proportional to 19,674.56, 27,150.72 and 11,291.12

Step by Step Solution

1. Step 1: Write the proportion equation
   19,674.56 : 27,150.72 = 11,291.12 : x
2. Step 2: Convert to fraction form
   19,674.56/27,150.72 = 11,291.12/x
3. Step 3: Cross multiply
   19,674.56x = 27,150.72 × 11,291.12
4. Step 4: Simplify right side
   19,674.56x = 306,562,037.61
5. Step 5: Solve for x
   x = 306,562,037.61/19,674.56
6. Step 6: Final answer
   x = 15,581.65