Finding the Fourth Proportional to 4,111.49, 6,159.38 and 2,720.72

Step by Step Solution

1. Step 1: Write the proportion equation
   4,111.49 : 6,159.38 = 2,720.72 : x
2. Step 2: Convert to fraction form
   4,111.49/6,159.38 = 2,720.72/x
3. Step 3: Cross multiply
   4,111.49x = 6,159.38 × 2,720.72
4. Step 4: Simplify right side
   4,111.49x = 16,757,950.15
5. Step 5: Solve for x
   x = 16,757,950.15/4,111.49
6. Step 6: Final answer
   x = 4,075.88