Finding the Fourth Proportional to 9,789.68, 14,679.48 and 3,944.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,789.68 : 14,679.48 = 3,944.72 : x
2. Step 2: Convert to fraction form
   9,789.68/14,679.48 = 3,944.72/x
3. Step 3: Cross multiply
   9,789.68x = 14,679.48 × 3,944.72
4. Step 4: Simplify right side
   9,789.68x = 57,906,438.35
5. Step 5: Solve for x
   x = 57,906,438.35/9,789.68
6. Step 6: Final answer
   x = 5,915.05