Finding the Fourth Proportional to 12,017.38, 18,013.32 and 7,089.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,017.38 : 18,013.32 = 7,089.34 : x
2. Step 2: Convert to fraction form
   12,017.38/18,013.32 = 7,089.34/x
3. Step 3: Cross multiply
   12,017.38x = 18,013.32 × 7,089.34
4. Step 4: Simplify right side
   12,017.38x = 127,702,550.01
5. Step 5: Solve for x
   x = 127,702,550.01/12,017.38
6. Step 6: Final answer
   x = 10,626.49