Finding the Fourth Proportional to 6,434.46, 8,877.24 and 3,915.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,434.46 : 8,877.24 = 3,915.72 : x
2. Step 2: Convert to fraction form
   6,434.46/8,877.24 = 3,915.72/x
3. Step 3: Cross multiply
   6,434.46x = 8,877.24 × 3,915.72
4. Step 4: Simplify right side
   6,434.46x = 34,760,786.21
5. Step 5: Solve for x
   x = 34,760,786.21/6,434.46
6. Step 6: Final answer
   x = 5,402.28