Finding the Fourth Proportional to 12,016.87, 18,027.38 and 5,355.74

Step by Step Solution

1. Step 1: Write the proportion equation
   12,016.87 : 18,027.38 = 5,355.74 : x
2. Step 2: Convert to fraction form
   12,016.87/18,027.38 = 5,355.74/x
3. Step 3: Cross multiply
   12,016.87x = 18,027.38 × 5,355.74
4. Step 4: Simplify right side
   12,016.87x = 96,549,870.02
5. Step 5: Solve for x
   x = 96,549,870.02/12,016.87
6. Step 6: Final answer
   x = 8,034.53