Finding the Fourth Proportional to 12,789.28, 17,647.94 and 7,483.06

Step by Step Solution

1. Step 1: Write the proportion equation
   12,789.28 : 17,647.94 = 7,483.06 : x
2. Step 2: Convert to fraction form
   12,789.28/17,647.94 = 7,483.06/x
3. Step 3: Cross multiply
   12,789.28x = 17,647.94 × 7,483.06
4. Step 4: Simplify right side
   12,789.28x = 132,060,593.90
5. Step 5: Solve for x
   x = 132,060,593.90/12,789.28
6. Step 6: Final answer
   x = 10,325.88