Finding the Fourth Proportional to 7,158.34, 10,725.82 and 3,643.51

Step by Step Solution

1. Step 1: Write the proportion equation
   7,158.34 : 10,725.82 = 3,643.51 : x
2. Step 2: Convert to fraction form
   7,158.34/10,725.82 = 3,643.51/x
3. Step 3: Cross multiply
   7,158.34x = 10,725.82 × 3,643.51
4. Step 4: Simplify right side
   7,158.34x = 39,079,632.43
5. Step 5: Solve for x
   x = 39,079,632.43/7,158.34
6. Step 6: Final answer
   x = 5,459.31