Finding the Fourth Proportional to 13,008.16, 17,951.20 and 7,039.82

Step by Step Solution

1. Step 1: Write the proportion equation
   13,008.16 : 17,951.20 = 7,039.82 : x
2. Step 2: Convert to fraction form
   13,008.16/17,951.20 = 7,039.82/x
3. Step 3: Cross multiply
   13,008.16x = 17,951.20 × 7,039.82
4. Step 4: Simplify right side
   13,008.16x = 126,373,216.78
5. Step 5: Solve for x
   x = 126,373,216.78/13,008.16
6. Step 6: Final answer
   x = 9,714.92