Finding the Fourth Proportional to 12,786.59, 17,647.59 and 8,008.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,786.59 : 17,647.59 = 8,008.34 : x
2. Step 2: Convert to fraction form
   12,786.59/17,647.59 = 8,008.34/x
3. Step 3: Cross multiply
   12,786.59x = 17,647.59 × 8,008.34
4. Step 4: Simplify right side
   12,786.59x = 141,327,900.90
5. Step 5: Solve for x
   x = 141,327,900.90/12,786.59
6. Step 6: Final answer
   x = 11,052.83