Finding the Fourth Proportional to 11,233.47, 16,842.69 and 5,386.89

Step by Step Solution

1. Step 1: Write the proportion equation
   11,233.47 : 16,842.69 = 5,386.89 : x
2. Step 2: Convert to fraction form
   11,233.47/16,842.69 = 5,386.89/x
3. Step 3: Cross multiply
   11,233.47x = 16,842.69 × 5,386.89
4. Step 4: Simplify right side
   11,233.47x = 90,729,718.33
5. Step 5: Solve for x
   x = 90,729,718.33/11,233.47
6. Step 6: Final answer
   x = 8,076.73