Finding the Fourth Proportional to 6,705.50, 9,253.59 and 3,721.78

Step by Step Solution

1. Step 1: Write the proportion equation
   6,705.50 : 9,253.59 = 3,721.78 : x
2. Step 2: Convert to fraction form
   6,705.50/9,253.59 = 3,721.78/x
3. Step 3: Cross multiply
   6,705.50x = 9,253.59 × 3,721.78
4. Step 4: Simplify right side
   6,705.50x = 34,439,826.19
5. Step 5: Solve for x
   x = 34,439,826.19/6,705.50
6. Step 6: Final answer
   x = 5,136.06