Finding the Fourth Proportional to 19,886.31, 27,443.81 and 10,934.49

Step by Step Solution

1. Step 1: Write the proportion equation
   19,886.31 : 27,443.81 = 10,934.49 : x
2. Step 2: Convert to fraction form
   19,886.31/27,443.81 = 10,934.49/x
3. Step 3: Cross multiply
   19,886.31x = 27,443.81 × 10,934.49
4. Step 4: Simplify right side
   19,886.31x = 300,084,196.26
5. Step 5: Solve for x
   x = 300,084,196.26/19,886.31
6. Step 6: Final answer
   x = 15,089.99