Finding the Fourth Proportional to 6,915.42, 10,375.72 and 4,144.08

Step by Step Solution

1. Step 1: Write the proportion equation
   6,915.42 : 10,375.72 = 4,144.08 : x
2. Step 2: Convert to fraction form
   6,915.42/10,375.72 = 4,144.08/x
3. Step 3: Cross multiply
   6,915.42x = 10,375.72 × 4,144.08
4. Step 4: Simplify right side
   6,915.42x = 42,997,813.74
5. Step 5: Solve for x
   x = 42,997,813.74/6,915.42
6. Step 6: Final answer
   x = 6,217.67