Finding the Fourth Proportional to 8,839.89, 12,199.50 and 5,063.07

Step by Step Solution

1. Step 1: Write the proportion equation
   8,839.89 : 12,199.50 = 5,063.07 : x
2. Step 2: Convert to fraction form
   8,839.89/12,199.50 = 5,063.07/x
3. Step 3: Cross multiply
   8,839.89x = 12,199.50 × 5,063.07
4. Step 4: Simplify right side
   8,839.89x = 61,766,922.47
5. Step 5: Solve for x
   x = 61,766,922.47/8,839.89
6. Step 6: Final answer
   x = 6,987.30