Finding the Fourth Proportional to 11,388.69, 17,059.02 and 7,226.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,388.69 : 17,059.02 = 7,226.50 : x
2. Step 2: Convert to fraction form
   11,388.69/17,059.02 = 7,226.50/x
3. Step 3: Cross multiply
   11,388.69x = 17,059.02 × 7,226.50
4. Step 4: Simplify right side
   11,388.69x = 123,277,008.03
5. Step 5: Solve for x
   x = 123,277,008.03/11,388.69
6. Step 6: Final answer
   x = 10,824.51