Finding the Fourth Proportional to 13,466.10, 18,583.98 and 8,090.18

Step by Step Solution

1. Step 1: Write the proportion equation
   13,466.10 : 18,583.98 = 8,090.18 : x
2. Step 2: Convert to fraction form
   13,466.10/18,583.98 = 8,090.18/x
3. Step 3: Cross multiply
   13,466.10x = 18,583.98 × 8,090.18
4. Step 4: Simplify right side
   13,466.10x = 150,347,763.54
5. Step 5: Solve for x
   x = 150,347,763.54/13,466.10
6. Step 6: Final answer
   x = 11,164.91