Finding the Fourth Proportional to 64,981.20, 89,626.05 and 41,084.79

Step by Step Solution

1. Step 1: Write the proportion equation
   64,981.20 : 89,626.05 = 41,084.79 : x
2. Step 2: Convert to fraction form
   64,981.20/89,626.05 = 41,084.79/x
3. Step 3: Cross multiply
   64,981.20x = 89,626.05 × 41,084.79
4. Step 4: Simplify right side
   64,981.20x = 3,682,267,442.78
5. Step 5: Solve for x
   x = 3,682,267,442.78/64,981.20
6. Step 6: Final answer
   x = 56,666.66