Finding the Fourth Proportional to 81,635.40, 112,668.22 and 45,345

Step by Step Solution

1. Step 1: Write the proportion equation
   81,635.40 : 112,668.22 = 45,345 : x
2. Step 2: Convert to fraction form
   81,635.40/112,668.22 = 45,345/x
3. Step 3: Cross multiply
   81,635.40x = 112,668.22 × 45,345
4. Step 4: Simplify right side
   81,635.40x = 5,108,940,435.90
5. Step 5: Solve for x
   x = 5,108,940,435.90/81,635.40
6. Step 6: Final answer
   x = 62,582.41