Finding the Fourth Proportional to 16,238.89, 22,409.74 and 8,786.89

Step by Step Solution

1. Step 1: Write the proportion equation
   16,238.89 : 22,409.74 = 8,786.89 : x
2. Step 2: Convert to fraction form
   16,238.89/22,409.74 = 8,786.89/x
3. Step 3: Cross multiply
   16,238.89x = 22,409.74 × 8,786.89
4. Step 4: Simplify right side
   16,238.89x = 196,911,876.37
5. Step 5: Solve for x
   x = 196,911,876.37/16,238.89
6. Step 6: Final answer
   x = 12,125.94