Finding the Fourth Proportional to 50,838.50, 70,157.13 and 30,966.50

Step by Step Solution

1. Step 1: Write the proportion equation
   50,838.50 : 70,157.13 = 30,966.50 : x
2. Step 2: Convert to fraction form
   50,838.50/70,157.13 = 30,966.50/x
3. Step 3: Cross multiply
   50,838.50x = 70,157.13 × 30,966.50
4. Step 4: Simplify right side
   50,838.50x = 2,172,520,766.15
5. Step 5: Solve for x
   x = 2,172,520,766.15/50,838.50
6. Step 6: Final answer
   x = 42,733.77