Finding the Fourth Proportional to 31,263.38, 43,147.57 and 17,831.55

Step by Step Solution

1. Step 1: Write the proportion equation
   31,263.38 : 43,147.57 = 17,831.55 : x
2. Step 2: Convert to fraction form
   31,263.38/43,147.57 = 17,831.55/x
3. Step 3: Cross multiply
   31,263.38x = 43,147.57 × 17,831.55
4. Step 4: Simplify right side
   31,263.38x = 769,388,051.83
5. Step 5: Solve for x
   x = 769,388,051.83/31,263.38
6. Step 6: Final answer
   x = 24,609.88