Finding the Fourth Proportional to 81,645.98, 112,665.23 and 45,829.07

Step by Step Solution

1. Step 1: Write the proportion equation
   81,645.98 : 112,665.23 = 45,829.07 : x
2. Step 2: Convert to fraction form
   81,645.98/112,665.23 = 45,829.07/x
3. Step 3: Cross multiply
   81,645.98x = 112,665.23 × 45,829.07
4. Step 4: Simplify right side
   81,645.98x = 5,163,342,764.75
5. Step 5: Solve for x
   x = 5,163,342,764.75/81,645.98
6. Step 6: Final answer
   x = 63,240.62