Finding the Fourth Proportional to 18,086.73, 27,128.01 and 4,940.16

Step by Step Solution

1. Step 1: Write the proportion equation
   18,086.73 : 27,128.01 = 4,940.16 : x
2. Step 2: Convert to fraction form
   18,086.73/27,128.01 = 4,940.16/x
3. Step 3: Cross multiply
   18,086.73x = 27,128.01 × 4,940.16
4. Step 4: Simplify right side
   18,086.73x = 134,016,709.88
5. Step 5: Solve for x
   x = 134,016,709.88/18,086.73
6. Step 6: Final answer
   x = 7,409.67