Finding the Fourth Proportional to 12,528.25, 17,284.69 and 7,146.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,528.25 : 17,284.69 = 7,146.82 : x
2. Step 2: Convert to fraction form
   12,528.25/17,284.69 = 7,146.82/x
3. Step 3: Cross multiply
   12,528.25x = 17,284.69 × 7,146.82
4. Step 4: Simplify right side
   12,528.25x = 123,530,568.19
5. Step 5: Solve for x
   x = 123,530,568.19/12,528.25
6. Step 6: Final answer
   x = 9,860.16