Finding the Fourth Proportional to 67,831.63, 93,607.64 and 37,621.57

Step by Step Solution

1. Step 1: Write the proportion equation
   67,831.63 : 93,607.64 = 37,621.57 : x
2. Step 2: Convert to fraction form
   67,831.63/93,607.64 = 37,621.57/x
3. Step 3: Cross multiply
   67,831.63x = 93,607.64 × 37,621.57
4. Step 4: Simplify right side
   67,831.63x = 3,521,666,380.79
5. Step 5: Solve for x
   x = 3,521,666,380.79/67,831.63
6. Step 6: Final answer
   x = 51,917.76