Finding the Fourth Proportional to 4,978.85, 7,458.56 and 3,026.21

Step by Step Solution

1. Step 1: Write the proportion equation
   4,978.85 : 7,458.56 = 3,026.21 : x
2. Step 2: Convert to fraction form
   4,978.85/7,458.56 = 3,026.21/x
3. Step 3: Cross multiply
   4,978.85x = 7,458.56 × 3,026.21
4. Step 4: Simplify right side
   4,978.85x = 22,571,153.73
5. Step 5: Solve for x
   x = 22,571,153.73/4,978.85
6. Step 6: Final answer
   x = 4,533.41