Finding the Fourth Proportional to 6,111.32, 9,168.60 and 2,216.30

Step by Step Solution

1. Step 1: Write the proportion equation
   6,111.32 : 9,168.60 = 2,216.30 : x
2. Step 2: Convert to fraction form
   6,111.32/9,168.60 = 2,216.30/x
3. Step 3: Cross multiply
   6,111.32x = 9,168.60 × 2,216.30
4. Step 4: Simplify right side
   6,111.32x = 20,320,368.18
5. Step 5: Solve for x
   x = 20,320,368.18/6,111.32
6. Step 6: Final answer
   x = 3,325.04