Finding the Fourth Proportional to 126,018.75, 173,905.89 and 69,431.34

Step by Step Solution

1. Step 1: Write the proportion equation
   126,018.75 : 173,905.89 = 69,431.34 : x
2. Step 2: Convert to fraction form
   126,018.75/173,905.89 = 69,431.34/x
3. Step 3: Cross multiply
   126,018.75x = 173,905.89 × 69,431.34
4. Step 4: Simplify right side
   126,018.75x = 12,074,518,976.59
5. Step 5: Solve for x
   x = 12,074,518,976.59/126,018.75
6. Step 6: Final answer
   x = 95,815.26