Finding the Fourth Proportional to 4,945.89, 7,383.48 and 4,772.82

Step by Step Solution

1. Step 1: Write the proportion equation
   4,945.89 : 7,383.48 = 4,772.82 : x
2. Step 2: Convert to fraction form
   4,945.89/7,383.48 = 4,772.82/x
3. Step 3: Cross multiply
   4,945.89x = 7,383.48 × 4,772.82
4. Step 4: Simplify right side
   4,945.89x = 35,240,044.23
5. Step 5: Solve for x
   x = 35,240,044.23/4,945.89
6. Step 6: Final answer
   x = 7,125.12