Finding the Fourth Proportional to 6,975.72, 9,613.15 and 6,847.61

Step by Step Solution

1. Step 1: Write the proportion equation
   6,975.72 : 9,613.15 = 6,847.61 : x
2. Step 2: Convert to fraction form
   6,975.72/9,613.15 = 6,847.61/x
3. Step 3: Cross multiply
   6,975.72x = 9,613.15 × 6,847.61
4. Step 4: Simplify right side
   6,975.72x = 65,827,036.89
5. Step 5: Solve for x
   x = 65,827,036.89/6,975.72
6. Step 6: Final answer
   x = 9,436.59