Finding the Fourth Proportional to 8,242.32, 12,357.60 and 3,857.52

Step by Step Solution

1. Step 1: Write the proportion equation
   8,242.32 : 12,357.60 = 3,857.52 : x
2. Step 2: Convert to fraction form
   8,242.32/12,357.60 = 3,857.52/x
3. Step 3: Cross multiply
   8,242.32x = 12,357.60 × 3,857.52
4. Step 4: Simplify right side
   8,242.32x = 47,669,689.15
5. Step 5: Solve for x
   x = 47,669,689.15/8,242.32
6. Step 6: Final answer
   x = 5,783.53