Finding the Fourth Proportional to 12,649.72, 17,456.52 and 6,984.48

Step by Step Solution

1. Step 1: Write the proportion equation
   12,649.72 : 17,456.52 = 6,984.48 : x
2. Step 2: Convert to fraction form
   12,649.72/17,456.52 = 6,984.48/x
3. Step 3: Cross multiply
   12,649.72x = 17,456.52 × 6,984.48
4. Step 4: Simplify right side
   12,649.72x = 121,924,714.81
5. Step 5: Solve for x
   x = 121,924,714.81/12,649.72
6. Step 6: Final answer
   x = 9,638.53