Finding the Fourth Proportional to 140,469.75, 210,704.83 and 57,363.75

Step by Step Solution

1. Step 1: Write the proportion equation
   140,469.75 : 210,704.83 = 57,363.75 : x
2. Step 2: Convert to fraction form
   140,469.75/210,704.83 = 57,363.75/x
3. Step 3: Cross multiply
   140,469.75x = 210,704.83 × 57,363.75
4. Step 4: Simplify right side
   140,469.75x = 12,086,819,048.50
5. Step 5: Solve for x
   x = 12,086,819,048.50/140,469.75
6. Step 6: Final answer
   x = 86,045.71