Finding the Fourth Proportional to 89,431.50, 123,441.39 and 59,623.50

Step by Step Solution

1. Step 1: Write the proportion equation
   89,431.50 : 123,441.39 = 59,623.50 : x
2. Step 2: Convert to fraction form
   89,431.50/123,441.39 = 59,623.50/x
3. Step 3: Cross multiply
   89,431.50x = 123,441.39 × 59,623.50
4. Step 4: Simplify right side
   89,431.50x = 7,360,007,716.67
5. Step 5: Solve for x
   x = 7,360,007,716.67/89,431.50
6. Step 6: Final answer
   x = 82,297.71