Finding the Fourth Proportional to 8,839.86, 12,199.32 and 4,861.28

Step by Step Solution

1. Step 1: Write the proportion equation
   8,839.86 : 12,199.32 = 4,861.28 : x
2. Step 2: Convert to fraction form
   8,839.86/12,199.32 = 4,861.28/x
3. Step 3: Cross multiply
   8,839.86x = 12,199.32 × 4,861.28
4. Step 4: Simplify right side
   8,839.86x = 59,304,249.33
5. Step 5: Solve for x
   x = 59,304,249.33/8,839.86
6. Step 6: Final answer
   x = 6,708.73