Finding the Fourth Proportional to 89,872.73, 134,680.62 and 65,992.91

Step by Step Solution

1. Step 1: Write the proportion equation
   89,872.73 : 134,680.62 = 65,992.91 : x
2. Step 2: Convert to fraction form
   89,872.73/134,680.62 = 65,992.91/x
3. Step 3: Cross multiply
   89,872.73x = 134,680.62 × 65,992.91
4. Step 4: Simplify right side
   89,872.73x = 8,887,965,361.00
5. Step 5: Solve for x
   x = 8,887,965,361.00/89,872.73
6. Step 6: Final answer
   x = 98,895.02