Finding the Fourth Proportional to 7,141.34, 9,855.18 and 3,997.52

Step by Step Solution

1. Step 1: Write the proportion equation
   7,141.34 : 9,855.18 = 3,997.52 : x
2. Step 2: Convert to fraction form
   7,141.34/9,855.18 = 3,997.52/x
3. Step 3: Cross multiply
   7,141.34x = 9,855.18 × 3,997.52
4. Step 4: Simplify right side
   7,141.34x = 39,396,279.15
5. Step 5: Solve for x
   x = 39,396,279.15/7,141.34
6. Step 6: Final answer
   x = 5,516.65