Finding the Fourth Proportional to 8,865.71, 13,300.52 and 2,626.21

Step by Step Solution

1. Step 1: Write the proportion equation
   8,865.71 : 13,300.52 = 2,626.21 : x
2. Step 2: Convert to fraction form
   8,865.71/13,300.52 = 2,626.21/x
3. Step 3: Cross multiply
   8,865.71x = 13,300.52 × 2,626.21
4. Step 4: Simplify right side
   8,865.71x = 34,929,999.53
5. Step 5: Solve for x
   x = 34,929,999.53/8,865.71
6. Step 6: Final answer
   x = 3,939.90