Finding the Fourth Proportional to 12,863.46, 17,753.28 and 7,200.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,863.46 : 17,753.28 = 7,200.38 : x
2. Step 2: Convert to fraction form
   12,863.46/17,753.28 = 7,200.38/x
3. Step 3: Cross multiply
   12,863.46x = 17,753.28 × 7,200.38
4. Step 4: Simplify right side
   12,863.46x = 127,830,362.25
5. Step 5: Solve for x
   x = 127,830,362.25/12,863.46
6. Step 6: Final answer
   x = 9,937.48