Finding the Fourth Proportional to 64,882.89, 89,544.67 and 39,383.39

Step by Step Solution

1. Step 1: Write the proportion equation
   64,882.89 : 89,544.67 = 39,383.39 : x
2. Step 2: Convert to fraction form
   64,882.89/89,544.67 = 39,383.39/x
3. Step 3: Cross multiply
   64,882.89x = 89,544.67 × 39,383.39
4. Step 4: Simplify right side
   64,882.89x = 3,526,572,786.43
5. Step 5: Solve for x
   x = 3,526,572,786.43/64,882.89
6. Step 6: Final answer
   x = 54,352.89