Finding the Fourth Proportional to 10,208.41, 15,298.23 and 8,119.15

Step by Step Solution

1. Step 1: Write the proportion equation
   10,208.41 : 15,298.23 = 8,119.15 : x
2. Step 2: Convert to fraction form
   10,208.41/15,298.23 = 8,119.15/x
3. Step 3: Cross multiply
   10,208.41x = 15,298.23 × 8,119.15
4. Step 4: Simplify right side
   10,208.41x = 124,208,624.10
5. Step 5: Solve for x
   x = 124,208,624.10/10,208.41
6. Step 6: Final answer
   x = 12,167.28