Finding the Fourth Proportional to 81,456.24, 112,409.60 and 45,646.56

Step by Step Solution

1. Step 1: Write the proportion equation
   81,456.24 : 112,409.60 = 45,646.56 : x
2. Step 2: Convert to fraction form
   81,456.24/112,409.60 = 45,646.56/x
3. Step 3: Cross multiply
   81,456.24x = 112,409.60 × 45,646.56
4. Step 4: Simplify right side
   81,456.24x = 5,131,111,550.98
5. Step 5: Solve for x
   x = 5,131,111,550.98/81,456.24
6. Step 6: Final answer
   x = 62,992.25