Finding the Fourth Proportional to 12,238.88, 18,355.74 and 5,992.59

Step by Step Solution

1. Step 1: Write the proportion equation
   12,238.88 : 18,355.74 = 5,992.59 : x
2. Step 2: Convert to fraction form
   12,238.88/18,355.74 = 5,992.59/x
3. Step 3: Cross multiply
   12,238.88x = 18,355.74 × 5,992.59
4. Step 4: Simplify right side
   12,238.88x = 109,998,487.18
5. Step 5: Solve for x
   x = 109,998,487.18/12,238.88
6. Step 6: Final answer
   x = 8,987.63