Finding the Fourth Proportional to 8,911.22, 12,298.16 and 5,554.44

Step by Step Solution

1. Step 1: Write the proportion equation
   8,911.22 : 12,298.16 = 5,554.44 : x
2. Step 2: Convert to fraction form
   8,911.22/12,298.16 = 5,554.44/x
3. Step 3: Cross multiply
   8,911.22x = 12,298.16 × 5,554.44
4. Step 4: Simplify right side
   8,911.22x = 68,309,405.72
5. Step 5: Solve for x
   x = 68,309,405.72/8,911.22
6. Step 6: Final answer
   x = 7,665.55