Finding the Fourth Proportional to 12,673, 17,488.74 and 7,085.48

Step by Step Solution

1. Step 1: Write the proportion equation
   12,673 : 17,488.74 = 7,085.48 : x
2. Step 2: Convert to fraction form
   12,673/17,488.74 = 7,085.48/x
3. Step 3: Cross multiply
   12,673x = 17,488.74 × 7,085.48
4. Step 4: Simplify right side
   12,673x = 123,916,117.50
5. Step 5: Solve for x
   x = 123,916,117.50/12,673
6. Step 6: Final answer
   x = 9,777.96