Finding the Fourth Proportional to 72,610.38, 108,849.96 and 50,434.20

Step by Step Solution

1. Step 1: Write the proportion equation
   72,610.38 : 108,849.96 = 50,434.20 : x
2. Step 2: Convert to fraction form
   72,610.38/108,849.96 = 50,434.20/x
3. Step 3: Cross multiply
   72,610.38x = 108,849.96 × 50,434.20
4. Step 4: Simplify right side
   72,610.38x = 5,489,760,652.63
5. Step 5: Solve for x
   x = 5,489,760,652.63/72,610.38
6. Step 6: Final answer
   x = 75,605.73