Finding the Fourth Proportional to 59,794.72, 89,553.84 and 57,721.12

Step by Step Solution

1. Step 1: Write the proportion equation
   59,794.72 : 89,553.84 = 57,721.12 : x
2. Step 2: Convert to fraction form
   59,794.72/89,553.84 = 57,721.12/x
3. Step 3: Cross multiply
   59,794.72x = 89,553.84 × 57,721.12
4. Step 4: Simplify right side
   59,794.72x = 5,169,147,945.10
5. Step 5: Solve for x
   x = 5,169,147,945.10/59,794.72
6. Step 6: Final answer
   x = 86,448.23