Finding the Fourth Proportional to 10,766.63, 14,853.74 and 7,940.79

Step by Step Solution

1. Step 1: Write the proportion equation
   10,766.63 : 14,853.74 = 7,940.79 : x
2. Step 2: Convert to fraction form
   10,766.63/14,853.74 = 7,940.79/x
3. Step 3: Cross multiply
   10,766.63x = 14,853.74 × 7,940.79
4. Step 4: Simplify right side
   10,766.63x = 117,950,390.35
5. Step 5: Solve for x
   x = 117,950,390.35/10,766.63
6. Step 6: Final answer
   x = 10,955.18