Finding the Fourth Proportional to 8,986.55, 13,483.06 and 3,144.02

Step by Step Solution

1. Step 1: Write the proportion equation
   8,986.55 : 13,483.06 = 3,144.02 : x
2. Step 2: Convert to fraction form
   8,986.55/13,483.06 = 3,144.02/x
3. Step 3: Cross multiply
   8,986.55x = 13,483.06 × 3,144.02
4. Step 4: Simplify right side
   8,986.55x = 42,390,935.03
5. Step 5: Solve for x
   x = 42,390,935.03/8,986.55
6. Step 6: Final answer
   x = 4,717.16