Finding the Fourth Proportional to 12,896.44, 17,796.18 and 7,230.76

Step by Step Solution

1. Step 1: Write the proportion equation
   12,896.44 : 17,796.18 = 7,230.76 : x
2. Step 2: Convert to fraction form
   12,896.44/17,796.18 = 7,230.76/x
3. Step 3: Cross multiply
   12,896.44x = 17,796.18 × 7,230.76
4. Step 4: Simplify right side
   12,896.44x = 128,679,906.50
5. Step 5: Solve for x
   x = 128,679,906.50/12,896.44
6. Step 6: Final answer
   x = 9,977.94