Finding the Fourth Proportional to 19,581.62, 27,019.78 and 11,196.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,581.62 : 27,019.78 = 11,196.50 : x
2. Step 2: Convert to fraction form
   19,581.62/27,019.78 = 11,196.50/x
3. Step 3: Cross multiply
   19,581.62x = 27,019.78 × 11,196.50
4. Step 4: Simplify right side
   19,581.62x = 302,526,803.68
5. Step 5: Solve for x
   x = 302,526,803.68/19,581.62
6. Step 6: Final answer
   x = 15,449.53