Finding the Fourth Proportional to 12,404.72, 17,118.62 and 6,739.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,404.72 : 17,118.62 = 6,739.56 : x
2. Step 2: Convert to fraction form
   12,404.72/17,118.62 = 6,739.56/x
3. Step 3: Cross multiply
   12,404.72x = 17,118.62 × 6,739.56
4. Step 4: Simplify right side
   12,404.72x = 115,371,932.91
5. Step 5: Solve for x
   x = 115,371,932.91/12,404.72
6. Step 6: Final answer
   x = 9,300.65