Finding the Fourth Proportional to 18,499.56, 27,759.60 and 8,111.04

Step by Step Solution

1. Step 1: Write the proportion equation
   18,499.56 : 27,759.60 = 8,111.04 : x
2. Step 2: Convert to fraction form
   18,499.56/27,759.60 = 8,111.04/x
3. Step 3: Cross multiply
   18,499.56x = 27,759.60 × 8,111.04
4. Step 4: Simplify right side
   18,499.56x = 225,159,225.98
5. Step 5: Solve for x
   x = 225,159,225.98/18,499.56
6. Step 6: Final answer
   x = 12,171.06