Finding the Fourth Proportional to 8,865.59, 13,298.37 and 2,626.09

Step by Step Solution

1. Step 1: Write the proportion equation
   8,865.59 : 13,298.37 = 2,626.09 : x
2. Step 2: Convert to fraction form
   8,865.59/13,298.37 = 2,626.09/x
3. Step 3: Cross multiply
   8,865.59x = 13,298.37 × 2,626.09
4. Step 4: Simplify right side
   8,865.59x = 34,922,728.56
5. Step 5: Solve for x
   x = 34,922,728.56/8,865.59
6. Step 6: Final answer
   x = 3,939.13