Finding the Fourth Proportional to 50,519.72, 69,688.28 and 31,624.04

Step by Step Solution

1. Step 1: Write the proportion equation
   50,519.72 : 69,688.28 = 31,624.04 : x
2. Step 2: Convert to fraction form
   50,519.72/69,688.28 = 31,624.04/x
3. Step 3: Cross multiply
   50,519.72x = 69,688.28 × 31,624.04
4. Step 4: Simplify right side
   50,519.72x = 2,203,825,049.41
5. Step 5: Solve for x
   x = 2,203,825,049.41/50,519.72
6. Step 6: Final answer
   x = 43,623.06