Finding the Fourth Proportional to 64,710.72, 89,317.43 and 50,367.24

Step by Step Solution

1. Step 1: Write the proportion equation
   64,710.72 : 89,317.43 = 50,367.24 : x
2. Step 2: Convert to fraction form
   64,710.72/89,317.43 = 50,367.24/x
3. Step 3: Cross multiply
   64,710.72x = 89,317.43 × 50,367.24
4. Step 4: Simplify right side
   64,710.72x = 4,498,672,181.16
5. Step 5: Solve for x
   x = 4,498,672,181.16/64,710.72
6. Step 6: Final answer
   x = 69,519.74