Finding the Fourth Proportional to 7,001.55, 9,662.06 and 3,857.67

Step by Step Solution

1. Step 1: Write the proportion equation
   7,001.55 : 9,662.06 = 3,857.67 : x
2. Step 2: Convert to fraction form
   7,001.55/9,662.06 = 3,857.67/x
3. Step 3: Cross multiply
   7,001.55x = 9,662.06 × 3,857.67
4. Step 4: Simplify right side
   7,001.55x = 37,273,019.71
5. Step 5: Solve for x
   x = 37,273,019.71/7,001.55
6. Step 6: Final answer
   x = 5,323.54