Finding the Fourth Proportional to 89,351.48, 123,311.34 and 59,084.20

Step by Step Solution

1. Step 1: Write the proportion equation
   89,351.48 : 123,311.34 = 59,084.20 : x
2. Step 2: Convert to fraction form
   89,351.48/123,311.34 = 59,084.20/x
3. Step 3: Cross multiply
   89,351.48x = 123,311.34 × 59,084.20
4. Step 4: Simplify right side
   89,351.48x = 7,285,751,874.83
5. Step 5: Solve for x
   x = 7,285,751,874.83/89,351.48
6. Step 6: Final answer
   x = 81,540.36