Finding the Fourth Proportional to 18,258.83, 27,389.85 and 5,111.24

Step by Step Solution

1. Step 1: Write the proportion equation
   18,258.83 : 27,389.85 = 5,111.24 : x
2. Step 2: Convert to fraction form
   18,258.83/27,389.85 = 5,111.24/x
3. Step 3: Cross multiply
   18,258.83x = 27,389.85 × 5,111.24
4. Step 4: Simplify right side
   18,258.83x = 139,996,171.90
5. Step 5: Solve for x
   x = 139,996,171.90/18,258.83
6. Step 6: Final answer
   x = 7,667.31