Finding the Fourth Proportional to 4,955.96, 7,478.92 and 4,790.72

Step by Step Solution

1. Step 1: Write the proportion equation
   4,955.96 : 7,478.92 = 4,790.72 : x
2. Step 2: Convert to fraction form
   4,955.96/7,478.92 = 4,790.72/x
3. Step 3: Cross multiply
   4,955.96x = 7,478.92 × 4,790.72
4. Step 4: Simplify right side
   4,955.96x = 35,829,411.62
5. Step 5: Solve for x
   x = 35,829,411.62/4,955.96
6. Step 6: Final answer
   x = 7,229.56