Finding the Fourth Proportional to 18,853.98, 26,016.98 and 10,896.72

Step by Step Solution

1. Step 1: Write the proportion equation
   18,853.98 : 26,016.98 = 10,896.72 : x
2. Step 2: Convert to fraction form
   18,853.98/26,016.98 = 10,896.72/x
3. Step 3: Cross multiply
   18,853.98x = 26,016.98 × 10,896.72
4. Step 4: Simplify right side
   18,853.98x = 283,499,691.82
5. Step 5: Solve for x
   x = 283,499,691.82/18,853.98
6. Step 6: Final answer
   x = 15,036.60