Finding the Fourth Proportional to 89,662.39, 134,161.37 and 65,987.42

Step by Step Solution

1. Step 1: Write the proportion equation
   89,662.39 : 134,161.37 = 65,987.42 : x
2. Step 2: Convert to fraction form
   89,662.39/134,161.37 = 65,987.42/x
3. Step 3: Cross multiply
   89,662.39x = 134,161.37 × 65,987.42
4. Step 4: Simplify right side
   89,662.39x = 8,852,962,669.97
5. Step 5: Solve for x
   x = 8,852,962,669.97/89,662.39
6. Step 6: Final answer
   x = 98,736.64