Finding the Fourth Proportional to 8,469.61, 12,723.87 and 5,976.53

Step by Step Solution

1. Step 1: Write the proportion equation
   8,469.61 : 12,723.87 = 5,976.53 : x
2. Step 2: Convert to fraction form
   8,469.61/12,723.87 = 5,976.53/x
3. Step 3: Cross multiply
   8,469.61x = 12,723.87 × 5,976.53
4. Step 4: Simplify right side
   8,469.61x = 76,044,590.77
5. Step 5: Solve for x
   x = 76,044,590.77/8,469.61
6. Step 6: Final answer
   x = 8,978.52