Finding the Fourth Proportional to 12,796.72, 17,653.44 and 7,488.28

Step by Step Solution

1. Step 1: Write the proportion equation
   12,796.72 : 17,653.44 = 7,488.28 : x
2. Step 2: Convert to fraction form
   12,796.72/17,653.44 = 7,488.28/x
3. Step 3: Cross multiply
   12,796.72x = 17,653.44 × 7,488.28
4. Step 4: Simplify right side
   12,796.72x = 132,193,901.68
5. Step 5: Solve for x
   x = 132,193,901.68/12,796.72
6. Step 6: Final answer
   x = 10,330.30