Finding the Fourth Proportional to 4,978.18, 7,467.88 and 4,314.79

Step by Step Solution

1. Step 1: Write the proportion equation
   4,978.18 : 7,467.88 = 4,314.79 : x
2. Step 2: Convert to fraction form
   4,978.18/7,467.88 = 4,314.79/x
3. Step 3: Cross multiply
   4,978.18x = 7,467.88 × 4,314.79
4. Step 4: Simplify right side
   4,978.18x = 32,222,333.95
5. Step 5: Solve for x
   x = 32,222,333.95/4,978.18
6. Step 6: Final answer
   x = 6,472.71