Finding the Fourth Proportional to 6,103.59, 8,420.56 and 3,981.61

Step by Step Solution

1. Step 1: Write the proportion equation
   6,103.59 : 8,420.56 = 3,981.61 : x
2. Step 2: Convert to fraction form
   6,103.59/8,420.56 = 3,981.61/x
3. Step 3: Cross multiply
   6,103.59x = 8,420.56 × 3,981.61
4. Step 4: Simplify right side
   6,103.59x = 33,527,385.90
5. Step 5: Solve for x
   x = 33,527,385.90/6,103.59
6. Step 6: Final answer
   x = 5,493.06