Finding the Fourth Proportional to 8,987.33, 13,483.62 and 3,144.39

Step by Step Solution

1. Step 1: Write the proportion equation
   8,987.33 : 13,483.62 = 3,144.39 : x
2. Step 2: Convert to fraction form
   8,987.33/13,483.62 = 3,144.39/x
3. Step 3: Cross multiply
   8,987.33x = 13,483.62 × 3,144.39
4. Step 4: Simplify right side
   8,987.33x = 42,397,759.89
5. Step 5: Solve for x
   x = 42,397,759.89/8,987.33
6. Step 6: Final answer
   x = 4,717.51