Finding the Fourth Proportional to 50,915.73, 70,260.53 and 30,760.70

Step by Step Solution

1. Step 1: Write the proportion equation
   50,915.73 : 70,260.53 = 30,760.70 : x
2. Step 2: Convert to fraction form
   50,915.73/70,260.53 = 30,760.70/x
3. Step 3: Cross multiply
   50,915.73x = 70,260.53 × 30,760.70
4. Step 4: Simplify right side
   50,915.73x = 2,161,263,337.72
5. Step 5: Solve for x
   x = 2,161,263,337.72/50,915.73
6. Step 6: Final answer
   x = 42,447.85