Finding the Fourth Proportional to 19,853.69, 27,398.41 and 10,902

Step by Step Solution

1. Step 1: Write the proportion equation
   19,853.69 : 27,398.41 = 10,902 : x
2. Step 2: Convert to fraction form
   19,853.69/27,398.41 = 10,902/x
3. Step 3: Cross multiply
   19,853.69x = 27,398.41 × 10,902
4. Step 4: Simplify right side
   19,853.69x = 298,697,465.82
5. Step 5: Solve for x
   x = 298,697,465.82/19,853.69
6. Step 6: Final answer
   x = 15,044.93