Finding the Fourth Proportional to 6,111.54, 9,168.24 and 2,215.04

Step by Step Solution

1. Step 1: Write the proportion equation
   6,111.54 : 9,168.24 = 2,215.04 : x
2. Step 2: Convert to fraction form
   6,111.54/9,168.24 = 2,215.04/x
3. Step 3: Cross multiply
   6,111.54x = 9,168.24 × 2,215.04
4. Step 4: Simplify right side
   6,111.54x = 20,307,972.49
5. Step 5: Solve for x
   x = 20,307,972.49/6,111.54
6. Step 6: Final answer
   x = 3,322.89