Finding the Fourth Proportional to 6,111.16, 9,166.77 and 2,215.46

Step by Step Solution

1. Step 1: Write the proportion equation
   6,111.16 : 9,166.77 = 2,215.46 : x
2. Step 2: Convert to fraction form
   6,111.16/9,166.77 = 2,215.46/x
3. Step 3: Cross multiply
   6,111.16x = 9,166.77 × 2,215.46
4. Step 4: Simplify right side
   6,111.16x = 20,308,635.18
5. Step 5: Solve for x
   x = 20,308,635.18/6,111.16
6. Step 6: Final answer
   x = 3,323.21