Finding the Fourth Proportional to 80,664.54, 111,299.67 and 48,834.78

Step by Step Solution

1. Step 1: Write the proportion equation
   80,664.54 : 111,299.67 = 48,834.78 : x
2. Step 2: Convert to fraction form
   80,664.54/111,299.67 = 48,834.78/x
3. Step 3: Cross multiply
   80,664.54x = 111,299.67 × 48,834.78
4. Step 4: Simplify right side
   80,664.54x = 5,435,294,898.52
5. Step 5: Solve for x
   x = 5,435,294,898.52/80,664.54
6. Step 6: Final answer
   x = 67,381.47