Finding the Fourth Proportional to 12,836.62, 17,714.32 and 7,171.46

Step by Step Solution

1. Step 1: Write the proportion equation
   12,836.62 : 17,714.32 = 7,171.46 : x
2. Step 2: Convert to fraction form
   12,836.62/17,714.32 = 7,171.46/x
3. Step 3: Cross multiply
   12,836.62x = 17,714.32 × 7,171.46
4. Step 4: Simplify right side
   12,836.62x = 127,037,537.31
5. Step 5: Solve for x
   x = 127,037,537.31/12,836.62
6. Step 6: Final answer
   x = 9,896.49