Finding the Fourth Proportional to 168,105.38, 251,877.82 and 138,211.82

Step by Step Solution

1. Step 1: Write the proportion equation
   168,105.38 : 251,877.82 = 138,211.82 : x
2. Step 2: Convert to fraction form
   168,105.38/251,877.82 = 138,211.82/x
3. Step 3: Cross multiply
   168,105.38x = 251,877.82 × 138,211.82
4. Step 4: Simplify right side
   168,105.38x = 34,812,491,732.48
5. Step 5: Solve for x
   x = 34,812,491,732.48/168,105.38
6. Step 6: Final answer
   x = 207,087.32