Finding the Fourth Proportional to 3,744.12, 5,641.56 and 3,109.08

Step by Step Solution

1. Step 1: Write the proportion equation
   3,744.12 : 5,641.56 = 3,109.08 : x
2. Step 2: Convert to fraction form
   3,744.12/5,641.56 = 3,109.08/x
3. Step 3: Cross multiply
   3,744.12x = 5,641.56 × 3,109.08
4. Step 4: Simplify right side
   3,744.12x = 17,540,061.36
5. Step 5: Solve for x
   x = 17,540,061.36/3,744.12
6. Step 6: Final answer
   x = 4,684.70