Finding the Fourth Proportional to 11,513.07, 17,269.71 and 3,721.89

Step by Step Solution

1. Step 1: Write the proportion equation
   11,513.07 : 17,269.71 = 3,721.89 : x
2. Step 2: Convert to fraction form
   11,513.07/17,269.71 = 3,721.89/x
3. Step 3: Cross multiply
   11,513.07x = 17,269.71 × 3,721.89
4. Step 4: Simplify right side
   11,513.07x = 64,275,960.95
5. Step 5: Solve for x
   x = 64,275,960.95/11,513.07
6. Step 6: Final answer
   x = 5,582.87