Finding the Fourth Proportional to 4,749.76, 7,106.82 and 3,928.42

Step by Step Solution

1. Step 1: Write the proportion equation
   4,749.76 : 7,106.82 = 3,928.42 : x
2. Step 2: Convert to fraction form
   4,749.76/7,106.82 = 3,928.42/x
3. Step 3: Cross multiply
   4,749.76x = 7,106.82 × 3,928.42
4. Step 4: Simplify right side
   4,749.76x = 27,918,573.82
5. Step 5: Solve for x
   x = 27,918,573.82/4,749.76
6. Step 6: Final answer
   x = 5,877.89