Finding the Fourth Proportional to 4,111.72, 5,672.58 and 2,619.37

Step by Step Solution

1. Step 1: Write the proportion equation
   4,111.72 : 5,672.58 = 2,619.37 : x
2. Step 2: Convert to fraction form
   4,111.72/5,672.58 = 2,619.37/x
3. Step 3: Cross multiply
   4,111.72x = 5,672.58 × 2,619.37
4. Step 4: Simplify right side
   4,111.72x = 14,858,585.87
5. Step 5: Solve for x
   x = 14,858,585.87/4,111.72
6. Step 6: Final answer
   x = 3,613.72