Finding the Fourth Proportional to 108,142.05, 162,229.94 and 51,971.69

Step by Step Solution

1. Step 1: Write the proportion equation
   108,142.05 : 162,229.94 = 51,971.69 : x
2. Step 2: Convert to fraction form
   108,142.05/162,229.94 = 51,971.69/x
3. Step 3: Cross multiply
   108,142.05x = 162,229.94 × 51,971.69
4. Step 4: Simplify right side
   108,142.05x = 8,431,363,079.39
5. Step 5: Solve for x
   x = 8,431,363,079.39/108,142.05
6. Step 6: Final answer
   x = 77,965.63