Finding the Fourth Proportional to 12,427.29, 17,144.01 and 7,388.65

Step by Step Solution

1. Step 1: Write the proportion equation
   12,427.29 : 17,144.01 = 7,388.65 : x
2. Step 2: Convert to fraction form
   12,427.29/17,144.01 = 7,388.65/x
3. Step 3: Cross multiply
   12,427.29x = 17,144.01 × 7,388.65
4. Step 4: Simplify right side
   12,427.29x = 126,671,046.63
5. Step 5: Solve for x
   x = 126,671,046.63/12,427.29
6. Step 6: Final answer
   x = 10,192.97