Finding the Fourth Proportional to 11,389.13, 17,059.78 and 7,227

Step by Step Solution

1. Step 1: Write the proportion equation
   11,389.13 : 17,059.78 = 7,227 : x
2. Step 2: Convert to fraction form
   11,389.13/17,059.78 = 7,227/x
3. Step 3: Cross multiply
   11,389.13x = 17,059.78 × 7,227
4. Step 4: Simplify right side
   11,389.13x = 123,291,030.06
5. Step 5: Solve for x
   x = 123,291,030.06/11,389.13
6. Step 6: Final answer
   x = 10,825.32