Finding the Fourth Proportional to 6,979.21, 9,627.46 and 4,422.29

Step by Step Solution

1. Step 1: Write the proportion equation
   6,979.21 : 9,627.46 = 4,422.29 : x
2. Step 2: Convert to fraction form
   6,979.21/9,627.46 = 4,422.29/x
3. Step 3: Cross multiply
   6,979.21x = 9,627.46 × 4,422.29
4. Step 4: Simplify right side
   6,979.21x = 42,575,360.89
5. Step 5: Solve for x
   x = 42,575,360.89/6,979.21
6. Step 6: Final answer
   x = 6,100.31