Finding the Fourth Proportional to 8,693.48, 13,040.12 and 3,144.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,693.48 : 13,040.12 = 3,144.72 : x
2. Step 2: Convert to fraction form
   8,693.48/13,040.12 = 3,144.72/x
3. Step 3: Cross multiply
   8,693.48x = 13,040.12 × 3,144.72
4. Step 4: Simplify right side
   8,693.48x = 41,007,526.17
5. Step 5: Solve for x
   x = 41,007,526.17/8,693.48
6. Step 6: Final answer
   x = 4,717.04