Finding the Fourth Proportional to 12,676.20, 17,494.02 and 7,086.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,676.20 : 17,494.02 = 7,086.12 : x
2. Step 2: Convert to fraction form
   12,676.20/17,494.02 = 7,086.12/x
3. Step 3: Cross multiply
   12,676.20x = 17,494.02 × 7,086.12
4. Step 4: Simplify right side
   12,676.20x = 123,964,725.00
5. Step 5: Solve for x
   x = 123,964,725.00/12,676.20
6. Step 6: Final answer
   x = 9,779.33