Finding the Fourth Proportional to 31,609.43, 43,622.27 and 18,180.67

Step by Step Solution

1. Step 1: Write the proportion equation
   31,609.43 : 43,622.27 = 18,180.67 : x
2. Step 2: Convert to fraction form
   31,609.43/43,622.27 = 18,180.67/x
3. Step 3: Cross multiply
   31,609.43x = 43,622.27 × 18,180.67
4. Step 4: Simplify right side
   31,609.43x = 793,082,095.52
5. Step 5: Solve for x
   x = 793,082,095.52/31,609.43
6. Step 6: Final answer
   x = 25,090.05