Finding the Fourth Proportional to 49,086.72, 67,831.56 and 40,130.82

Step by Step Solution

1. Step 1: Write the proportion equation
   49,086.72 : 67,831.56 = 40,130.82 : x
2. Step 2: Convert to fraction form
   49,086.72/67,831.56 = 40,130.82/x
3. Step 3: Cross multiply
   49,086.72x = 67,831.56 × 40,130.82
4. Step 4: Simplify right side
   49,086.72x = 2,722,136,124.68
5. Step 5: Solve for x
   x = 2,722,136,124.68/49,086.72
6. Step 6: Final answer
   x = 55,455.65