Finding the Fourth Proportional to 4,978.92, 7,469.73 and 4,434.90

Step by Step Solution

1. Step 1: Write the proportion equation
   4,978.92 : 7,469.73 = 4,434.90 : x
2. Step 2: Convert to fraction form
   4,978.92/7,469.73 = 4,434.90/x
3. Step 3: Cross multiply
   4,978.92x = 7,469.73 × 4,434.90
4. Step 4: Simplify right side
   4,978.92x = 33,127,505.58
5. Step 5: Solve for x
   x = 33,127,505.58/4,978.92
6. Step 6: Final answer
   x = 6,653.55