Finding the Fourth Proportional to 81,628.91, 112,639.25 and 45,822.86

Step by Step Solution

1. Step 1: Write the proportion equation
   81,628.91 : 112,639.25 = 45,822.86 : x
2. Step 2: Convert to fraction form
   81,628.91/112,639.25 = 45,822.86/x
3. Step 3: Cross multiply
   81,628.91x = 112,639.25 × 45,822.86
4. Step 4: Simplify right side
   81,628.91x = 5,161,451,790.94
5. Step 5: Solve for x
   x = 5,161,451,790.94/81,628.91
6. Step 6: Final answer
   x = 63,230.69