Finding the Fourth Proportional to 64,540, 89,073.82 and 39,066.92

Step by Step Solution

1. Step 1: Write the proportion equation
   64,540 : 89,073.82 = 39,066.92 : x
2. Step 2: Convert to fraction form
   64,540/89,073.82 = 39,066.92/x
3. Step 3: Cross multiply
   64,540x = 89,073.82 × 39,066.92
4. Step 4: Simplify right side
   64,540x = 3,479,839,800.03
5. Step 5: Solve for x
   x = 3,479,839,800.03/64,540
6. Step 6: Final answer
   x = 53,917.57