Finding the Fourth Proportional to 12,679.83, 17,492.27 and 8,205.02

Step by Step Solution

1. Step 1: Write the proportion equation
   12,679.83 : 17,492.27 = 8,205.02 : x
2. Step 2: Convert to fraction form
   12,679.83/17,492.27 = 8,205.02/x
3. Step 3: Cross multiply
   12,679.83x = 17,492.27 × 8,205.02
4. Step 4: Simplify right side
   12,679.83x = 143,524,427.90
5. Step 5: Solve for x
   x = 143,524,427.90/12,679.83
6. Step 6: Final answer
   x = 11,319.12