Finding the Fourth Proportional to 11,362.94, 17,039.55 and 5,121.62

Step by Step Solution

1. Step 1: Write the proportion equation
   11,362.94 : 17,039.55 = 5,121.62 : x
2. Step 2: Convert to fraction form
   11,362.94/17,039.55 = 5,121.62/x
3. Step 3: Cross multiply
   11,362.94x = 17,039.55 × 5,121.62
4. Step 4: Simplify right side
   11,362.94x = 87,270,100.07
5. Step 5: Solve for x
   x = 87,270,100.07/11,362.94
6. Step 6: Final answer
   x = 7,680.24