Finding the Fourth Proportional to 8,993.67, 12,407.75 and 5,806.12

Step by Step Solution

1. Step 1: Write the proportion equation
   8,993.67 : 12,407.75 = 5,806.12 : x
2. Step 2: Convert to fraction form
   8,993.67/12,407.75 = 5,806.12/x
3. Step 3: Cross multiply
   8,993.67x = 12,407.75 × 5,806.12
4. Step 4: Simplify right side
   8,993.67x = 72,040,823.39
5. Step 5: Solve for x
   x = 72,040,823.39/8,993.67
6. Step 6: Final answer
   x = 8,010.17