Finding the Fourth Proportional to 3,727.72, 5,564.45 and 3,457.48

Step by Step Solution

1. Step 1: Write the proportion equation
   3,727.72 : 5,564.45 = 3,457.48 : x
2. Step 2: Convert to fraction form
   3,727.72/5,564.45 = 3,457.48/x
3. Step 3: Cross multiply
   3,727.72x = 5,564.45 × 3,457.48
4. Step 4: Simplify right side
   3,727.72x = 19,238,974.59
5. Step 5: Solve for x
   x = 19,238,974.59/3,727.72
6. Step 6: Final answer
   x = 5,161.06