Finding the Fourth Proportional to 126,196.38, 174,059.55 and 85,838.49

Step by Step Solution

1. Step 1: Write the proportion equation
   126,196.38 : 174,059.55 = 85,838.49 : x
2. Step 2: Convert to fraction form
   126,196.38/174,059.55 = 85,838.49/x
3. Step 3: Cross multiply
   126,196.38x = 174,059.55 × 85,838.49
4. Step 4: Simplify right side
   126,196.38x = 14,941,008,942.08
5. Step 5: Solve for x
   x = 14,941,008,942.08/126,196.38
6. Step 6: Final answer
   x = 118,394.91