Finding the Fourth Proportional to 10,949.54, 15,101.25 and 8,117.78

Step by Step Solution

1. Step 1: Write the proportion equation
   10,949.54 : 15,101.25 = 8,117.78 : x
2. Step 2: Convert to fraction form
   10,949.54/15,101.25 = 8,117.78/x
3. Step 3: Cross multiply
   10,949.54x = 15,101.25 × 8,117.78
4. Step 4: Simplify right side
   10,949.54x = 122,588,625.23
5. Step 5: Solve for x
   x = 122,588,625.23/10,949.54
6. Step 6: Final answer
   x = 11,195.78