Finding the Fourth Proportional to 142,047.96, 213,105.30 and 42,208.92

Step by Step Solution

1. Step 1: Write the proportion equation
   142,047.96 : 213,105.30 = 42,208.92 : x
2. Step 2: Convert to fraction form
   142,047.96/213,105.30 = 42,208.92/x
3. Step 3: Cross multiply
   142,047.96x = 213,105.30 × 42,208.92
4. Step 4: Simplify right side
   142,047.96x = 8,994,944,559.28
5. Step 5: Solve for x
   x = 8,994,944,559.28/142,047.96
6. Step 6: Final answer
   x = 63,323.29