Finding the Fourth Proportional to 14,046.28, 19,383.78 and 7,758.64

Step by Step Solution

1. Step 1: Write the proportion equation
   14,046.28 : 19,383.78 = 7,758.64 : x
2. Step 2: Convert to fraction form
   14,046.28/19,383.78 = 7,758.64/x
3. Step 3: Cross multiply
   14,046.28x = 19,383.78 × 7,758.64
4. Step 4: Simplify right side
   14,046.28x = 150,391,770.86
5. Step 5: Solve for x
   x = 150,391,770.86/14,046.28
6. Step 6: Final answer
   x = 10,706.88