Finding the Fourth Proportional to 10,686.78, 14,728.32 and 7,095.42

Step by Step Solution

1. Step 1: Write the proportion equation
   10,686.78 : 14,728.32 = 7,095.42 : x
2. Step 2: Convert to fraction form
   10,686.78/14,728.32 = 7,095.42/x
3. Step 3: Cross multiply
   10,686.78x = 14,728.32 × 7,095.42
4. Step 4: Simplify right side
   10,686.78x = 104,503,616.29
5. Step 5: Solve for x
   x = 104,503,616.29/10,686.78
6. Step 6: Final answer
   x = 9,778.77