Finding the Fourth Proportional to 9,105.50, 13,657.31 and 2,865.32

Step by Step Solution

1. Step 1: Write the proportion equation
   9,105.50 : 13,657.31 = 2,865.32 : x
2. Step 2: Convert to fraction form
   9,105.50/13,657.31 = 2,865.32/x
3. Step 3: Cross multiply
   9,105.50x = 13,657.31 × 2,865.32
4. Step 4: Simplify right side
   9,105.50x = 39,132,619.66
5. Step 5: Solve for x
   x = 39,132,619.66/9,105.50
6. Step 6: Final answer
   x = 4,297.69