Finding the Fourth Proportional to 6,144.30, 8,478.81 and 3,785.58

Step by Step Solution

1. Step 1: Write the proportion equation
   6,144.30 : 8,478.81 = 3,785.58 : x
2. Step 2: Convert to fraction form
   6,144.30/8,478.81 = 3,785.58/x
3. Step 3: Cross multiply
   6,144.30x = 8,478.81 × 3,785.58
4. Step 4: Simplify right side
   6,144.30x = 32,097,213.56
5. Step 5: Solve for x
   x = 32,097,213.56/6,144.30
6. Step 6: Final answer
   x = 5,223.90