Finding the Fourth Proportional to 6,061.40, 8,363.76 and 3,408.80

Step by Step Solution

1. Step 1: Write the proportion equation
   6,061.40 : 8,363.76 = 3,408.80 : x
2. Step 2: Convert to fraction form
   6,061.40/8,363.76 = 3,408.80/x
3. Step 3: Cross multiply
   6,061.40x = 8,363.76 × 3,408.80
4. Step 4: Simplify right side
   6,061.40x = 28,510,385.09
5. Step 5: Solve for x
   x = 28,510,385.09/6,061.40
6. Step 6: Final answer
   x = 4,703.60