Finding the Fourth Proportional to 7,001.34, 9,661.86 and 3,857.54

Step by Step Solution

1. Step 1: Write the proportion equation
   7,001.34 : 9,661.86 = 3,857.54 : x
2. Step 2: Convert to fraction form
   7,001.34/9,661.86 = 3,857.54/x
3. Step 3: Cross multiply
   7,001.34x = 9,661.86 × 3,857.54
4. Step 4: Simplify right side
   7,001.34x = 37,271,011.42
5. Step 5: Solve for x
   x = 37,271,011.42/7,001.34
6. Step 6: Final answer
   x = 5,323.41