Finding the Fourth Proportional to 126,453.16, 174,450.54 and 76,123

Step by Step Solution

1. Step 1: Write the proportion equation
   126,453.16 : 174,450.54 = 76,123 : x
2. Step 2: Convert to fraction form
   126,453.16/174,450.54 = 76,123/x
3. Step 3: Cross multiply
   126,453.16x = 174,450.54 × 76,123
4. Step 4: Simplify right side
   126,453.16x = 13,279,698,456.42
5. Step 5: Solve for x
   x = 13,279,698,456.42/126,453.16
6. Step 6: Final answer
   x = 105,016.74