Finding the Fourth Proportional to 4,978.71, 7,468.47 and 4,847.49

Step by Step Solution

1. Step 1: Write the proportion equation
   4,978.71 : 7,468.47 = 4,847.49 : x
2. Step 2: Convert to fraction form
   4,978.71/7,468.47 = 4,847.49/x
3. Step 3: Cross multiply
   4,978.71x = 7,468.47 × 4,847.49
4. Step 4: Simplify right side
   4,978.71x = 36,203,333.64
5. Step 5: Solve for x
   x = 36,203,333.64/4,978.71
6. Step 6: Final answer
   x = 7,271.63