Finding the Fourth Proportional to 4,945.59, 7,361.89 and 4,871.78

Step by Step Solution

1. Step 1: Write the proportion equation
   4,945.59 : 7,361.89 = 4,871.78 : x
2. Step 2: Convert to fraction form
   4,945.59/7,361.89 = 4,871.78/x
3. Step 3: Cross multiply
   4,945.59x = 7,361.89 × 4,871.78
4. Step 4: Simplify right side
   4,945.59x = 35,865,487.08
5. Step 5: Solve for x
   x = 35,865,487.08/4,945.59
6. Step 6: Final answer
   x = 7,252.01