Finding the Fourth Proportional to 8,813.25, 12,162.29 and 5,087.25

Step by Step Solution

1. Step 1: Write the proportion equation
   8,813.25 : 12,162.29 = 5,087.25 : x
2. Step 2: Convert to fraction form
   8,813.25/12,162.29 = 5,087.25/x
3. Step 3: Cross multiply
   8,813.25x = 12,162.29 × 5,087.25
4. Step 4: Simplify right side
   8,813.25x = 61,872,584.37
5. Step 5: Solve for x
   x = 61,872,584.37/8,813.25
6. Step 6: Final answer
   x = 7,020.41