Finding the Fourth Proportional to 12,338.17, 17,023.31 and 7,031.05

Step by Step Solution

1. Step 1: Write the proportion equation
   12,338.17 : 17,023.31 = 7,031.05 : x
2. Step 2: Convert to fraction form
   12,338.17/17,023.31 = 7,031.05/x
3. Step 3: Cross multiply
   12,338.17x = 17,023.31 × 7,031.05
4. Step 4: Simplify right side
   12,338.17x = 119,691,708.62
5. Step 5: Solve for x
   x = 119,691,708.62/12,338.17
6. Step 6: Final answer
   x = 9,700.93