Finding the Fourth Proportional to 6,981.89, 9,632.67 and 4,290.26

Step by Step Solution

1. Step 1: Write the proportion equation
   6,981.89 : 9,632.67 = 4,290.26 : x
2. Step 2: Convert to fraction form
   6,981.89/9,632.67 = 4,290.26/x
3. Step 3: Cross multiply
   6,981.89x = 9,632.67 × 4,290.26
4. Step 4: Simplify right side
   6,981.89x = 41,326,658.79
5. Step 5: Solve for x
   x = 41,326,658.79/6,981.89
6. Step 6: Final answer
   x = 5,919.12