Finding the Fourth Proportional to 12,710.73, 17,521.37 and 8,923.28

Step by Step Solution

1. Step 1: Write the proportion equation
   12,710.73 : 17,521.37 = 8,923.28 : x
2. Step 2: Convert to fraction form
   12,710.73/17,521.37 = 8,923.28/x
3. Step 3: Cross multiply
   12,710.73x = 17,521.37 × 8,923.28
4. Step 4: Simplify right side
   12,710.73x = 156,347,991.73
5. Step 5: Solve for x
   x = 156,347,991.73/12,710.73
6. Step 6: Final answer
   x = 12,300.47