Finding the Fourth Proportional to 12,685, 17,505.30 and 7,097.08

Step by Step Solution

1. Step 1: Write the proportion equation
   12,685 : 17,505.30 = 7,097.08 : x
2. Step 2: Convert to fraction form
   12,685/17,505.30 = 7,097.08/x
3. Step 3: Cross multiply
   12,685x = 17,505.30 × 7,097.08
4. Step 4: Simplify right side
   12,685x = 124,236,514.52
5. Step 5: Solve for x
   x = 124,236,514.52/12,685
6. Step 6: Final answer
   x = 9,793.97