Finding the Fourth Proportional to 212,076.09, 318,105.83 and 71,834.71

Step by Step Solution

1. Step 1: Write the proportion equation
   212,076.09 : 318,105.83 = 71,834.71 : x
2. Step 2: Convert to fraction form
   212,076.09/318,105.83 = 71,834.71/x
3. Step 3: Cross multiply
   212,076.09x = 318,105.83 × 71,834.71
4. Step 4: Simplify right side
   212,076.09x = 22,851,039,688.19
5. Step 5: Solve for x
   x = 22,851,039,688.19/212,076.09
6. Step 6: Final answer
   x = 107,749.25