Finding the Fourth Proportional to 4,173.12, 5,754.24 and 3,654.72

Step by Step Solution

1. Step 1: Write the proportion equation
   4,173.12 : 5,754.24 = 3,654.72 : x
2. Step 2: Convert to fraction form
   4,173.12/5,754.24 = 3,654.72/x
3. Step 3: Cross multiply
   4,173.12x = 5,754.24 × 3,654.72
4. Step 4: Simplify right side
   4,173.12x = 21,030,136.01
5. Step 5: Solve for x
   x = 21,030,136.01/4,173.12
6. Step 6: Final answer
   x = 5,039.43