Finding the Fourth Proportional to 89,046.22, 122,902.34 and 81,864.76

Step by Step Solution

1. Step 1: Write the proportion equation
   89,046.22 : 122,902.34 = 81,864.76 : x
2. Step 2: Convert to fraction form
   89,046.22/122,902.34 = 81,864.76/x
3. Step 3: Cross multiply
   89,046.22x = 122,902.34 × 81,864.76
4. Step 4: Simplify right side
   89,046.22x = 10,061,370,567.54
5. Step 5: Solve for x
   x = 10,061,370,567.54/89,046.22
6. Step 6: Final answer
   x = 112,990.43