Finding the Fourth Proportional to 89,165.43, 123,066.43 and 81,983.97

Step by Step Solution

1. Step 1: Write the proportion equation
   89,165.43 : 123,066.43 = 81,983.97 : x
2. Step 2: Convert to fraction form
   89,165.43/123,066.43 = 81,983.97/x
3. Step 3: Cross multiply
   89,165.43x = 123,066.43 × 81,983.97
4. Step 4: Simplify right side
   89,165.43x = 10,089,473,838.67
5. Step 5: Solve for x
   x = 10,089,473,838.67/89,165.43
6. Step 6: Final answer
   x = 113,154.55