Finding the Fourth Proportional to 8,855.52, 12,222.68 and 5,078.62

Step by Step Solution

1. Step 1: Write the proportion equation
   8,855.52 : 12,222.68 = 5,078.62 : x
2. Step 2: Convert to fraction form
   8,855.52/12,222.68 = 5,078.62/x
3. Step 3: Cross multiply
   8,855.52x = 12,222.68 × 5,078.62
4. Step 4: Simplify right side
   8,855.52x = 62,074,347.10
5. Step 5: Solve for x
   x = 62,074,347.10/8,855.52
6. Step 6: Final answer
   x = 7,009.68