Finding the Fourth Proportional to 64,727.43, 89,351.49 and 43,519

Step by Step Solution

1. Step 1: Write the proportion equation
   64,727.43 : 89,351.49 = 43,519 : x
2. Step 2: Convert to fraction form
   64,727.43/89,351.49 = 43,519/x
3. Step 3: Cross multiply
   64,727.43x = 89,351.49 × 43,519
4. Step 4: Simplify right side
   64,727.43x = 3,888,487,493.31
5. Step 5: Solve for x
   x = 3,888,487,493.31/64,727.43
6. Step 6: Final answer
   x = 60,074.80