Finding the Fourth Proportional to 11,771.22, 17,618.56 and 8,650.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,771.22 : 17,618.56 = 8,650.50 : x
2. Step 2: Convert to fraction form
   11,771.22/17,618.56 = 8,650.50/x
3. Step 3: Cross multiply
   11,771.22x = 17,618.56 × 8,650.50
4. Step 4: Simplify right side
   11,771.22x = 152,409,314.24
5. Step 5: Solve for x
   x = 152,409,314.24/11,771.22
6. Step 6: Final answer
   x = 12,947.62