Finding the Fourth Proportional to 7,229.43, 9,978.27 and 4,707.15

Step by Step Solution

1. Step 1: Write the proportion equation
   7,229.43 : 9,978.27 = 4,707.15 : x
2. Step 2: Convert to fraction form
   7,229.43/9,978.27 = 4,707.15/x
3. Step 3: Cross multiply
   7,229.43x = 9,978.27 × 4,707.15
4. Step 4: Simplify right side
   7,229.43x = 46,969,213.63
5. Step 5: Solve for x
   x = 46,969,213.63/7,229.43
6. Step 6: Final answer
   x = 6,496.95