Finding the Fourth Proportional to 12,673.61, 17,489.69 and 7,008.74

Step by Step Solution

1. Step 1: Write the proportion equation
   12,673.61 : 17,489.69 = 7,008.74 : x
2. Step 2: Convert to fraction form
   12,673.61/17,489.69 = 7,008.74/x
3. Step 3: Cross multiply
   12,673.61x = 17,489.69 × 7,008.74
4. Step 4: Simplify right side
   12,673.61x = 122,580,663.69
5. Step 5: Solve for x
   x = 122,580,663.69/12,673.61
6. Step 6: Final answer
   x = 9,672.12