Finding the Fourth Proportional to 140,633.48, 210,923.34 and 42,137.48

Step by Step Solution

1. Step 1: Write the proportion equation
   140,633.48 : 210,923.34 = 42,137.48 : x
2. Step 2: Convert to fraction form
   140,633.48/210,923.34 = 42,137.48/x
3. Step 3: Cross multiply
   140,633.48x = 210,923.34 × 42,137.48
4. Step 4: Simplify right side
   140,633.48x = 8,887,778,020.78
5. Step 5: Solve for x
   x = 8,887,778,020.78/140,633.48
6. Step 6: Final answer
   x = 63,198.17