Finding the Fourth Proportional to 19,886.81, 27,443.06 and 10,933.78

Step by Step Solution

1. Step 1: Write the proportion equation
   19,886.81 : 27,443.06 = 10,933.78 : x
2. Step 2: Convert to fraction form
   19,886.81/27,443.06 = 10,933.78/x
3. Step 3: Cross multiply
   19,886.81x = 27,443.06 × 10,933.78
4. Step 4: Simplify right side
   19,886.81x = 300,056,380.57
5. Step 5: Solve for x
   x = 300,056,380.57/19,886.81
6. Step 6: Final answer
   x = 15,088.21