Finding the Fourth Proportional to 81,689.82, 122,447.61 and 46,553.82

Step by Step Solution

1. Step 1: Write the proportion equation
   81,689.82 : 122,447.61 = 46,553.82 : x
2. Step 2: Convert to fraction form
   81,689.82/122,447.61 = 46,553.82/x
3. Step 3: Cross multiply
   81,689.82x = 122,447.61 × 46,553.82
4. Step 4: Simplify right side
   81,689.82x = 5,700,403,995.37
5. Step 5: Solve for x
   x = 5,700,403,995.37/81,689.82
6. Step 6: Final answer
   x = 69,781.08