Finding the Fourth Proportional to 81,456.44, 112,409.98 and 45,646.94

Step by Step Solution

1. Step 1: Write the proportion equation
   81,456.44 : 112,409.98 = 45,646.94 : x
2. Step 2: Convert to fraction form
   81,456.44/112,409.98 = 45,646.94/x
3. Step 3: Cross multiply
   81,456.44x = 112,409.98 × 45,646.94
4. Step 4: Simplify right side
   81,456.44x = 5,131,171,779.37
5. Step 5: Solve for x
   x = 5,131,171,779.37/81,456.44
6. Step 6: Final answer
   x = 62,992.84