Finding the Fourth Proportional to 81,397.98, 112,323.24 and 49,577.13

Step by Step Solution

1. Step 1: Write the proportion equation
   81,397.98 : 112,323.24 = 49,577.13 : x
2. Step 2: Convert to fraction form
   81,397.98/112,323.24 = 49,577.13/x
3. Step 3: Cross multiply
   81,397.98x = 112,323.24 × 49,577.13
4. Step 4: Simplify right side
   81,397.98x = 5,568,663,871.50
5. Step 5: Solve for x
   x = 5,568,663,871.50/81,397.98
6. Step 6: Final answer
   x = 68,412.80