Finding the Fourth Proportional to 18,586.56, 27,872.52 and 7,491.18

Step by Step Solution

1. Step 1: Write the proportion equation
   18,586.56 : 27,872.52 = 7,491.18 : x
2. Step 2: Convert to fraction form
   18,586.56/27,872.52 = 7,491.18/x
3. Step 3: Cross multiply
   18,586.56x = 27,872.52 × 7,491.18
4. Step 4: Simplify right side
   18,586.56x = 208,798,064.37
5. Step 5: Solve for x
   x = 208,798,064.37/18,586.56
6. Step 6: Final answer
   x = 11,233.82