Finding the Fourth Proportional to 18,081.72, 27,125.51 and 5,598.81

Step by Step Solution

1. Step 1: Write the proportion equation
   18,081.72 : 27,125.51 = 5,598.81 : x
2. Step 2: Convert to fraction form
   18,081.72/27,125.51 = 5,598.81/x
3. Step 3: Cross multiply
   18,081.72x = 27,125.51 × 5,598.81
4. Step 4: Simplify right side
   18,081.72x = 151,870,548.65
5. Step 5: Solve for x
   x = 151,870,548.65/18,081.72
6. Step 6: Final answer
   x = 8,399.12