Finding the Fourth Proportional to 12,868.26, 17,755.13 and 7,832.42

Step by Step Solution

1. Step 1: Write the proportion equation
   12,868.26 : 17,755.13 = 7,832.42 : x
2. Step 2: Convert to fraction form
   12,868.26/17,755.13 = 7,832.42/x
3. Step 3: Cross multiply
   12,868.26x = 17,755.13 × 7,832.42
4. Step 4: Simplify right side
   12,868.26x = 139,065,635.31
5. Step 5: Solve for x
   x = 139,065,635.31/12,868.26
6. Step 6: Final answer
   x = 10,806.87