Finding the Fourth Proportional to 13,082.38, 18,054.03 and 7,114.40

Step by Step Solution

1. Step 1: Write the proportion equation
   13,082.38 : 18,054.03 = 7,114.40 : x
2. Step 2: Convert to fraction form
   13,082.38/18,054.03 = 7,114.40/x
3. Step 3: Cross multiply
   13,082.38x = 18,054.03 × 7,114.40
4. Step 4: Simplify right side
   13,082.38x = 128,443,591.03
5. Step 5: Solve for x
   x = 128,443,591.03/13,082.38
6. Step 6: Final answer
   x = 9,818.06