Finding the Fourth Proportional to 89,662.89, 134,162.12 and 65,987.92

Step by Step Solution

1. Step 1: Write the proportion equation
   89,662.89 : 134,162.12 = 65,987.92 : x
2. Step 2: Convert to fraction form
   89,662.89/134,162.12 = 65,987.92/x
3. Step 3: Cross multiply
   89,662.89x = 134,162.12 × 65,987.92
4. Step 4: Simplify right side
   89,662.89x = 8,853,079,241.59
5. Step 5: Solve for x
   x = 8,853,079,241.59/89,662.89
6. Step 6: Final answer
   x = 98,737.38