Finding the Fourth Proportional to 6,076.31, 8,385.30 and 3,423.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,076.31 : 8,385.30 = 3,423.72 : x
2. Step 2: Convert to fraction form
   6,076.31/8,385.30 = 3,423.72/x
3. Step 3: Cross multiply
   6,076.31x = 8,385.30 × 3,423.72
4. Step 4: Simplify right side
   6,076.31x = 28,708,919.32
5. Step 5: Solve for x
   x = 28,708,919.32/6,076.31
6. Step 6: Final answer
   x = 4,724.73