Finding the Fourth Proportional to 12,751.14, 17,596.90 and 7,085.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,751.14 : 17,596.90 = 7,085.72 : x
2. Step 2: Convert to fraction form
   12,751.14/17,596.90 = 7,085.72/x
3. Step 3: Cross multiply
   12,751.14x = 17,596.90 × 7,085.72
4. Step 4: Simplify right side
   12,751.14x = 124,686,706.27
5. Step 5: Solve for x
   x = 124,686,706.27/12,751.14
6. Step 6: Final answer
   x = 9,778.48