Finding the Fourth Proportional to 6,434.29, 8,876.49 and 3,915.46

Step by Step Solution

1. Step 1: Write the proportion equation
   6,434.29 : 8,876.49 = 3,915.46 : x
2. Step 2: Convert to fraction form
   6,434.29/8,876.49 = 3,915.46/x
3. Step 3: Cross multiply
   6,434.29x = 8,876.49 × 3,915.46
4. Step 4: Simplify right side
   6,434.29x = 34,755,541.54
5. Step 5: Solve for x
   x = 34,755,541.54/6,434.29
6. Step 6: Final answer
   x = 5,401.61