Finding the Fourth Proportional to 6,948.18, 10,422.63 and 3,985.83

Step by Step Solution

1. Step 1: Write the proportion equation
   6,948.18 : 10,422.63 = 3,985.83 : x
2. Step 2: Convert to fraction form
   6,948.18/10,422.63 = 3,985.83/x
3. Step 3: Cross multiply
   6,948.18x = 10,422.63 × 3,985.83
4. Step 4: Simplify right side
   6,948.18x = 41,542,831.33
5. Step 5: Solve for x
   x = 41,542,831.33/6,948.18
6. Step 6: Final answer
   x = 5,978.95