Finding the Fourth Proportional to 6,978.39, 9,632.72 and 4,621.29

Step by Step Solution

1. Step 1: Write the proportion equation
   6,978.39 : 9,632.72 = 4,621.29 : x
2. Step 2: Convert to fraction form
   6,978.39/9,632.72 = 4,621.29/x
3. Step 3: Cross multiply
   6,978.39x = 9,632.72 × 4,621.29
4. Step 4: Simplify right side
   6,978.39x = 44,515,569.50
5. Step 5: Solve for x
   x = 44,515,569.50/6,978.39
6. Step 6: Final answer
   x = 6,379.06