Finding the Fourth Proportional to 6,915.86, 10,329.69 and 6,256.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,915.86 : 10,329.69 = 6,256.72 : x
2. Step 2: Convert to fraction form
   6,915.86/10,329.69 = 6,256.72/x
3. Step 3: Cross multiply
   6,915.86x = 10,329.69 × 6,256.72
4. Step 4: Simplify right side
   6,915.86x = 64,629,895.08
5. Step 5: Solve for x
   x = 64,629,895.08/6,915.86
6. Step 6: Final answer
   x = 9,345.18