Finding the Fourth Proportional to 126,355.43, 189,469.73 and 42,085.96

Step by Step Solution

1. Step 1: Write the proportion equation
   126,355.43 : 189,469.73 = 42,085.96 : x
2. Step 2: Convert to fraction form
   126,355.43/189,469.73 = 42,085.96/x
3. Step 3: Cross multiply
   126,355.43x = 189,469.73 × 42,085.96
4. Step 4: Simplify right side
   126,355.43x = 7,974,015,109.53
5. Step 5: Solve for x
   x = 7,974,015,109.53/126,355.43
6. Step 6: Final answer
   x = 63,107.81