Finding the Fourth Proportional to 11,620.73, 17,431.27 and 3,300.76

Step by Step Solution

1. Step 1: Write the proportion equation
   11,620.73 : 17,431.27 = 3,300.76 : x
2. Step 2: Convert to fraction form
   11,620.73/17,431.27 = 3,300.76/x
3. Step 3: Cross multiply
   11,620.73x = 17,431.27 × 3,300.76
4. Step 4: Simplify right side
   11,620.73x = 57,536,452.30
5. Step 5: Solve for x
   x = 57,536,452.30/11,620.73
6. Step 6: Final answer
   x = 4,951.19