Finding the Fourth Proportional to 10,105.43, 13,945.37 and 5,629.16

Step by Step Solution

1. Step 1: Write the proportion equation
   10,105.43 : 13,945.37 = 5,629.16 : x
2. Step 2: Convert to fraction form
   10,105.43/13,945.37 = 5,629.16/x
3. Step 3: Cross multiply
   10,105.43x = 13,945.37 × 5,629.16
4. Step 4: Simplify right side
   10,105.43x = 78,500,725.71
5. Step 5: Solve for x
   x = 78,500,725.71/10,105.43
6. Step 6: Final answer
   x = 7,768.18