Finding the Fourth Proportional to 50,910.69, 70,253.55 and 30,755.64

Step by Step Solution

1. Step 1: Write the proportion equation
   50,910.69 : 70,253.55 = 30,755.64 : x
2. Step 2: Convert to fraction form
   50,910.69/70,253.55 = 30,755.64/x
3. Step 3: Cross multiply
   50,910.69x = 70,253.55 × 30,755.64
4. Step 4: Simplify right side
   50,910.69x = 2,160,692,892.52
5. Step 5: Solve for x
   x = 2,160,692,892.52/50,910.69
6. Step 6: Final answer
   x = 42,440.85