Finding the Fourth Proportional to 12,404.88, 17,118.73 and 6,815.88

Step by Step Solution

1. Step 1: Write the proportion equation
   12,404.88 : 17,118.73 = 6,815.88 : x
2. Step 2: Convert to fraction form
   12,404.88/17,118.73 = 6,815.88/x
3. Step 3: Cross multiply
   12,404.88x = 17,118.73 × 6,815.88
4. Step 4: Simplify right side
   12,404.88x = 116,679,106.80
5. Step 5: Solve for x
   x = 116,679,106.80/12,404.88
6. Step 6: Final answer
   x = 9,405.91