Finding the Fourth Proportional to 6,178.52, 8,521.98 and 3,821.78

Step by Step Solution

1. Step 1: Write the proportion equation
   6,178.52 : 8,521.98 = 3,821.78 : x
2. Step 2: Convert to fraction form
   6,178.52/8,521.98 = 3,821.78/x
3. Step 3: Cross multiply
   6,178.52x = 8,521.98 × 3,821.78
4. Step 4: Simplify right side
   6,178.52x = 32,569,132.72
5. Step 5: Solve for x
   x = 32,569,132.72/6,178.52
6. Step 6: Final answer
   x = 5,271.35