Finding the Fourth Proportional to 11,128.73, 16,687.35 and 3,336.53

Step by Step Solution

1. Step 1: Write the proportion equation
   11,128.73 : 16,687.35 = 3,336.53 : x
2. Step 2: Convert to fraction form
   11,128.73/16,687.35 = 3,336.53/x
3. Step 3: Cross multiply
   11,128.73x = 16,687.35 × 3,336.53
4. Step 4: Simplify right side
   11,128.73x = 55,677,760.46
5. Step 5: Solve for x
   x = 55,677,760.46/11,128.73
6. Step 6: Final answer
   x = 5,003.07