Finding the Fourth Proportional to 6,111.60, 9,168.12 and 2,214.96

Step by Step Solution

1. Step 1: Write the proportion equation
   6,111.60 : 9,168.12 = 2,214.96 : x
2. Step 2: Convert to fraction form
   6,111.60/9,168.12 = 2,214.96/x
3. Step 3: Cross multiply
   6,111.60x = 9,168.12 × 2,214.96
4. Step 4: Simplify right side
   6,111.60x = 20,307,019.08
5. Step 5: Solve for x
   x = 20,307,019.08/6,111.60
6. Step 6: Final answer
   x = 3,322.70