Finding the Fourth Proportional to 126,191.52, 173,789.96 and 123,435.90

Step by Step Solution

1. Step 1: Write the proportion equation
   126,191.52 : 173,789.96 = 123,435.90 : x
2. Step 2: Convert to fraction form
   126,191.52/173,789.96 = 123,435.90/x
3. Step 3: Cross multiply
   126,191.52x = 173,789.96 × 123,435.90
4. Step 4: Simplify right side
   126,191.52x = 21,451,919,506.38
5. Step 5: Solve for x
   x = 21,451,919,506.38/126,191.52
6. Step 6: Final answer
   x = 169,994.94