Finding the Fourth Proportional to 12,326.31, 17,006.15 and 7,017.37

Step by Step Solution

1. Step 1: Write the proportion equation
   12,326.31 : 17,006.15 = 7,017.37 : x
2. Step 2: Convert to fraction form
   12,326.31/17,006.15 = 7,017.37/x
3. Step 3: Cross multiply
   12,326.31x = 17,006.15 × 7,017.37
4. Step 4: Simplify right side
   12,326.31x = 119,338,421.85
5. Step 5: Solve for x
   x = 119,338,421.85/12,326.31
6. Step 6: Final answer
   x = 9,681.60