Finding the Fourth Proportional to 10,907.94, 16,362.72 and 10,317.45

Step by Step Solution

1. Step 1: Write the proportion equation
   10,907.94 : 16,362.72 = 10,317.45 : x
2. Step 2: Convert to fraction form
   10,907.94/16,362.72 = 10,317.45/x
3. Step 3: Cross multiply
   10,907.94x = 16,362.72 × 10,317.45
4. Step 4: Simplify right side
   10,907.94x = 168,821,545.46
5. Step 5: Solve for x
   x = 168,821,545.46/10,907.94
6. Step 6: Final answer
   x = 15,476.94