Finding the Fourth Proportional to 19,839.98, 27,377.69 and 10,886.03

Step by Step Solution

1. Step 1: Write the proportion equation
   19,839.98 : 27,377.69 = 10,886.03 : x
2. Step 2: Convert to fraction form
   19,839.98/27,377.69 = 10,886.03/x
3. Step 3: Cross multiply
   19,839.98x = 27,377.69 × 10,886.03
4. Step 4: Simplify right side
   19,839.98x = 298,034,163.35
5. Step 5: Solve for x
   x = 298,034,163.35/19,839.98
6. Step 6: Final answer
   x = 15,021.90