Finding the Fourth Proportional to 10,945.73, 15,109.94 and 7,984.17

Step by Step Solution

1. Step 1: Write the proportion equation
   10,945.73 : 15,109.94 = 7,984.17 : x
2. Step 2: Convert to fraction form
   10,945.73/15,109.94 = 7,984.17/x
3. Step 3: Cross multiply
   10,945.73x = 15,109.94 × 7,984.17
4. Step 4: Simplify right side
   10,945.73x = 120,640,349.61
5. Step 5: Solve for x
   x = 120,640,349.61/10,945.73
6. Step 6: Final answer
   x = 11,021.68