Finding the Fourth Proportional to 89,045.22, 122,900.96 and 81,863.76

Step by Step Solution

1. Step 1: Write the proportion equation
   89,045.22 : 122,900.96 = 81,863.76 : x
2. Step 2: Convert to fraction form
   89,045.22/122,900.96 = 81,863.76/x
3. Step 3: Cross multiply
   89,045.22x = 122,900.96 × 81,863.76
4. Step 4: Simplify right side
   89,045.22x = 10,061,134,127.67
5. Step 5: Solve for x
   x = 10,061,134,127.67/89,045.22
6. Step 6: Final answer
   x = 112,989.05