Finding the Fourth Proportional to 6,076.64, 8,385.72 and 3,423.80

Step by Step Solution

1. Step 1: Write the proportion equation
   6,076.64 : 8,385.72 = 3,423.80 : x
2. Step 2: Convert to fraction form
   6,076.64/8,385.72 = 3,423.80/x
3. Step 3: Cross multiply
   6,076.64x = 8,385.72 × 3,423.80
4. Step 4: Simplify right side
   6,076.64x = 28,711,028.14
5. Step 5: Solve for x
   x = 28,711,028.14/6,076.64
6. Step 6: Final answer
   x = 4,724.82