Finding the Fourth Proportional to 78,441.22, 108,249.72 and 42,631.23

Step by Step Solution

1. Step 1: Write the proportion equation
   78,441.22 : 108,249.72 = 42,631.23 : x
2. Step 2: Convert to fraction form
   78,441.22/108,249.72 = 42,631.23/x
3. Step 3: Cross multiply
   78,441.22x = 108,249.72 × 42,631.23
4. Step 4: Simplify right side
   78,441.22x = 4,614,818,550.89
5. Step 5: Solve for x
   x = 4,614,818,550.89/78,441.22
6. Step 6: Final answer
   x = 58,831.55