Finding the Fourth Proportional to 12,404.43, 17,118.30 and 6,739.29

Step by Step Solution

1. Step 1: Write the proportion equation
   12,404.43 : 17,118.30 = 6,739.29 : x
2. Step 2: Convert to fraction form
   12,404.43/17,118.30 = 6,739.29/x
3. Step 3: Cross multiply
   12,404.43x = 17,118.30 × 6,739.29
4. Step 4: Simplify right side
   12,404.43x = 115,365,188.01
5. Step 5: Solve for x
   x = 115,365,188.01/12,404.43
6. Step 6: Final answer
   x = 9,300.32