Finding the Fourth Proportional to 6,787.56, 9,366.59 and 3,955.10

Step by Step Solution

1. Step 1: Write the proportion equation
   6,787.56 : 9,366.59 = 3,955.10 : x
2. Step 2: Convert to fraction form
   6,787.56/9,366.59 = 3,955.10/x
3. Step 3: Cross multiply
   6,787.56x = 9,366.59 × 3,955.10
4. Step 4: Simplify right side
   6,787.56x = 37,045,740.92
5. Step 5: Solve for x
   x = 37,045,740.92/6,787.56
6. Step 6: Final answer
   x = 5,457.88