Finding the Fourth Proportional to 12,857.50, 17,743.35 and 7,269.58

Step by Step Solution

1. Step 1: Write the proportion equation
   12,857.50 : 17,743.35 = 7,269.58 : x
2. Step 2: Convert to fraction form
   12,857.50/17,743.35 = 7,269.58/x
3. Step 3: Cross multiply
   12,857.50x = 17,743.35 × 7,269.58
4. Step 4: Simplify right side
   12,857.50x = 128,986,702.29
5. Step 5: Solve for x
   x = 128,986,702.29/12,857.50
6. Step 6: Final answer
   x = 10,032.02