Finding the Fourth Proportional to 8,074.89, 12,111.99 and 2,811.10

Step by Step Solution

1. Step 1: Write the proportion equation
   8,074.89 : 12,111.99 = 2,811.10 : x
2. Step 2: Convert to fraction form
   8,074.89/12,111.99 = 2,811.10/x
3. Step 3: Cross multiply
   8,074.89x = 12,111.99 × 2,811.10
4. Step 4: Simplify right side
   8,074.89x = 34,048,015.09
5. Step 5: Solve for x
   x = 34,048,015.09/8,074.89
6. Step 6: Final answer
   x = 4,216.53