Finding the Fourth Proportional to 11,087.34, 16,638.81 and 10,028.62

Step by Step Solution

1. Step 1: Write the proportion equation
   11,087.34 : 16,638.81 = 10,028.62 : x
2. Step 2: Convert to fraction form
   11,087.34/16,638.81 = 10,028.62/x
3. Step 3: Cross multiply
   11,087.34x = 16,638.81 × 10,028.62
4. Step 4: Simplify right side
   11,087.34x = 166,864,302.74
5. Step 5: Solve for x
   x = 166,864,302.74/11,087.34
6. Step 6: Final answer
   x = 15,049.99