Finding the Fourth Proportional to 19,849.98, 27,393.28 and 10,898.30

Step by Step Solution

1. Step 1: Write the proportion equation
   19,849.98 : 27,393.28 = 10,898.30 : x
2. Step 2: Convert to fraction form
   19,849.98/27,393.28 = 10,898.30/x
3. Step 3: Cross multiply
   19,849.98x = 27,393.28 × 10,898.30
4. Step 4: Simplify right side
   19,849.98x = 298,540,183.42
5. Step 5: Solve for x
   x = 298,540,183.42/19,849.98
6. Step 6: Final answer
   x = 15,039.82