Finding the Fourth Proportional to 23,158.08, 31,958.18 and 13,596.09

Step by Step Solution

1. Step 1: Write the proportion equation
   23,158.08 : 31,958.18 = 13,596.09 : x
2. Step 2: Convert to fraction form
   23,158.08/31,958.18 = 13,596.09/x
3. Step 3: Cross multiply
   23,158.08x = 31,958.18 × 13,596.09
4. Step 4: Simplify right side
   23,158.08x = 434,506,223.54
5. Step 5: Solve for x
   x = 434,506,223.54/23,158.08
6. Step 6: Final answer
   x = 18,762.62