Finding the Fourth Proportional to 8,851.45, 12,214.72 and 4,872.56

Step by Step Solution

1. Step 1: Write the proportion equation
   8,851.45 : 12,214.72 = 4,872.56 : x
2. Step 2: Convert to fraction form
   8,851.45/12,214.72 = 4,872.56/x
3. Step 3: Cross multiply
   8,851.45x = 12,214.72 × 4,872.56
4. Step 4: Simplify right side
   8,851.45x = 59,516,914.80
5. Step 5: Solve for x
   x = 59,516,914.80/8,851.45
6. Step 6: Final answer
   x = 6,723.97