Finding the Fourth Proportional to 8,967.12, 12,380.15 and 5,781.54

Step by Step Solution

1. Step 1: Write the proportion equation
   8,967.12 : 12,380.15 = 5,781.54 : x
2. Step 2: Convert to fraction form
   8,967.12/12,380.15 = 5,781.54/x
3. Step 3: Cross multiply
   8,967.12x = 12,380.15 × 5,781.54
4. Step 4: Simplify right side
   8,967.12x = 71,576,332.43
5. Step 5: Solve for x
   x = 71,576,332.43/8,967.12
6. Step 6: Final answer
   x = 7,982.09