Finding the Fourth Proportional to 13,096.18, 18,064.11 and 8,386.30

Step by Step Solution

1. Step 1: Write the proportion equation
   13,096.18 : 18,064.11 = 8,386.30 : x
2. Step 2: Convert to fraction form
   13,096.18/18,064.11 = 8,386.30/x
3. Step 3: Cross multiply
   13,096.18x = 18,064.11 × 8,386.30
4. Step 4: Simplify right side
   13,096.18x = 151,491,045.69
5. Step 5: Solve for x
   x = 151,491,045.69/13,096.18
6. Step 6: Final answer
   x = 11,567.58