Finding the Fourth Proportional to 10,951.43, 15,114.37 and 7,177.79

Step by Step Solution

1. Step 1: Write the proportion equation
   10,951.43 : 15,114.37 = 7,177.79 : x
2. Step 2: Convert to fraction form
   10,951.43/15,114.37 = 7,177.79/x
3. Step 3: Cross multiply
   10,951.43x = 15,114.37 × 7,177.79
4. Step 4: Simplify right side
   10,951.43x = 108,487,680.33
5. Step 5: Solve for x
   x = 108,487,680.33/10,951.43
6. Step 6: Final answer
   x = 9,906.26