Finding the Fourth Proportional to 11,620.89, 17,428.71 and 3,300.73

Step by Step Solution

1. Step 1: Write the proportion equation
   11,620.89 : 17,428.71 = 3,300.73 : x
2. Step 2: Convert to fraction form
   11,620.89/17,428.71 = 3,300.73/x
3. Step 3: Cross multiply
   11,620.89x = 17,428.71 × 3,300.73
4. Step 4: Simplify right side
   11,620.89x = 57,527,465.96
5. Step 5: Solve for x
   x = 57,527,465.96/11,620.89
6. Step 6: Final answer
   x = 4,950.35