Finding the Fourth Proportional to 10,018.49, 13,826.09 and 5,987.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,018.49 : 13,826.09 = 5,987.12 : x
2. Step 2: Convert to fraction form
   10,018.49/13,826.09 = 5,987.12/x
3. Step 3: Cross multiply
   10,018.49x = 13,826.09 × 5,987.12
4. Step 4: Simplify right side
   10,018.49x = 82,778,405.80
5. Step 5: Solve for x
   x = 82,778,405.80/10,018.49
6. Step 6: Final answer
   x = 8,262.57