Finding the Fourth Proportional to 27,016.69, 37,283.55 and 15,687.12

Step by Step Solution

1. Step 1: Write the proportion equation
   27,016.69 : 37,283.55 = 15,687.12 : x
2. Step 2: Convert to fraction form
   27,016.69/37,283.55 = 15,687.12/x
3. Step 3: Cross multiply
   27,016.69x = 37,283.55 × 15,687.12
4. Step 4: Simplify right side
   27,016.69x = 584,871,522.88
5. Step 5: Solve for x
   x = 584,871,522.88/27,016.69
6. Step 6: Final answer
   x = 21,648.53