Finding the Fourth Proportional to 140,200.38, 193,453.70 and 82,831.77

Step by Step Solution

1. Step 1: Write the proportion equation
   140,200.38 : 193,453.70 = 82,831.77 : x
2. Step 2: Convert to fraction form
   140,200.38/193,453.70 = 82,831.77/x
3. Step 3: Cross multiply
   140,200.38x = 193,453.70 × 82,831.77
4. Step 4: Simplify right side
   140,200.38x = 16,024,111,969.89
5. Step 5: Solve for x
   x = 16,024,111,969.89/140,200.38
6. Step 6: Final answer
   x = 114,294.35