Finding the Fourth Proportional to 17,756.37, 26,626.05 and 8,388.59

Step by Step Solution

1. Step 1: Write the proportion equation
   17,756.37 : 26,626.05 = 8,388.59 : x
2. Step 2: Convert to fraction form
   17,756.37/26,626.05 = 8,388.59/x
3. Step 3: Cross multiply
   17,756.37x = 26,626.05 × 8,388.59
4. Step 4: Simplify right side
   17,756.37x = 223,354,883.64
5. Step 5: Solve for x
   x = 223,354,883.64/17,756.37
6. Step 6: Final answer
   x = 12,578.86