Finding the Fourth Proportional to 12,673.86, 17,488.40 and 7,007.85

Step by Step Solution

1. Step 1: Write the proportion equation
   12,673.86 : 17,488.40 = 7,007.85 : x
2. Step 2: Convert to fraction form
   12,673.86/17,488.40 = 7,007.85/x
3. Step 3: Cross multiply
   12,673.86x = 17,488.40 × 7,007.85
4. Step 4: Simplify right side
   12,673.86x = 122,556,083.94
5. Step 5: Solve for x
   x = 122,556,083.94/12,673.86
6. Step 6: Final answer
   x = 9,669.99