Finding the Fourth Proportional to 4,960.58, 7,405.38 and 4,787.45

Step by Step Solution

1. Step 1: Write the proportion equation
   4,960.58 : 7,405.38 = 4,787.45 : x
2. Step 2: Convert to fraction form
   4,960.58/7,405.38 = 4,787.45/x
3. Step 3: Cross multiply
   4,960.58x = 7,405.38 × 4,787.45
4. Step 4: Simplify right side
   4,960.58x = 35,452,849.45
5. Step 5: Solve for x
   x = 35,452,849.45/4,960.58
6. Step 6: Final answer
   x = 7,146.91