Finding the Fourth Proportional to 50,308.71, 69,423.20 and 30,155.51

Step by Step Solution

1. Step 1: Write the proportion equation
   50,308.71 : 69,423.20 = 30,155.51 : x
2. Step 2: Convert to fraction form
   50,308.71/69,423.20 = 30,155.51/x
3. Step 3: Cross multiply
   50,308.71x = 69,423.20 × 30,155.51
4. Step 4: Simplify right side
   50,308.71x = 2,093,491,503.94
5. Step 5: Solve for x
   x = 2,093,491,503.94/50,308.71
6. Step 6: Final answer
   x = 41,612.90