Finding the Fourth Proportional to 19,886.49, 27,443.39 and 10,934.15

Step by Step Solution

1. Step 1: Write the proportion equation
   19,886.49 : 27,443.39 = 10,934.15 : x
2. Step 2: Convert to fraction form
   19,886.49/27,443.39 = 10,934.15/x
3. Step 3: Cross multiply
   19,886.49x = 27,443.39 × 10,934.15
4. Step 4: Simplify right side
   19,886.49x = 300,069,950.88
5. Step 5: Solve for x
   x = 300,069,950.88/19,886.49
6. Step 6: Final answer
   x = 15,089.14