Finding the Fourth Proportional to 4,057.58, 6,080.78 and 2,111.16

Step by Step Solution

1. Step 1: Write the proportion equation
   4,057.58 : 6,080.78 = 2,111.16 : x
2. Step 2: Convert to fraction form
   4,057.58/6,080.78 = 2,111.16/x
3. Step 3: Cross multiply
   4,057.58x = 6,080.78 × 2,111.16
4. Step 4: Simplify right side
   4,057.58x = 12,837,499.50
5. Step 5: Solve for x
   x = 12,837,499.50/4,057.58
6. Step 6: Final answer
   x = 3,163.83