Finding the Fourth Proportional to 12,855.72, 19,285.98 and 5,836.22

Step by Step Solution

1. Step 1: Write the proportion equation
   12,855.72 : 19,285.98 = 5,836.22 : x
2. Step 2: Convert to fraction form
   12,855.72/19,285.98 = 5,836.22/x
3. Step 3: Cross multiply
   12,855.72x = 19,285.98 × 5,836.22
4. Step 4: Simplify right side
   12,855.72x = 112,557,222.20
5. Step 5: Solve for x
   x = 112,557,222.20/12,855.72
6. Step 6: Final answer
   x = 8,755.42