Finding the Fourth Proportional to 19,896.57, 27,457.89 and 10,944.72

Step by Step Solution

1. Step 1: Write the proportion equation
   19,896.57 : 27,457.89 = 10,944.72 : x
2. Step 2: Convert to fraction form
   19,896.57/27,457.89 = 10,944.72/x
3. Step 3: Cross multiply
   19,896.57x = 27,457.89 × 10,944.72
4. Step 4: Simplify right side
   19,896.57x = 300,518,917.84
5. Step 5: Solve for x
   x = 300,518,917.84/19,896.57
6. Step 6: Final answer
   x = 15,104.06