Finding the Fourth Proportional to 35,831.46, 49,439.39 and 21,684

Step by Step Solution

1. Step 1: Write the proportion equation
   35,831.46 : 49,439.39 = 21,684 : x
2. Step 2: Convert to fraction form
   35,831.46/49,439.39 = 21,684/x
3. Step 3: Cross multiply
   35,831.46x = 49,439.39 × 21,684
4. Step 4: Simplify right side
   35,831.46x = 1,072,043,624.34
5. Step 5: Solve for x
   x = 1,072,043,624.34/35,831.46
6. Step 6: Final answer
   x = 29,919.06