Finding the Fourth Proportional to 89,540.96, 123,617.55 and 59,367.11

Step by Step Solution

1. Step 1: Write the proportion equation
   89,540.96 : 123,617.55 = 59,367.11 : x
2. Step 2: Convert to fraction form
   89,540.96/123,617.55 = 59,367.11/x
3. Step 3: Cross multiply
   89,540.96x = 123,617.55 × 59,367.11
4. Step 4: Simplify right side
   89,540.96x = 7,338,816,070.69
5. Step 5: Solve for x
   x = 7,338,816,070.69/89,540.96
6. Step 6: Final answer
   x = 81,960.44