Finding the Fourth Proportional to 57,728.48, 86,555.39 and 37,947.06

Step by Step Solution

1. Step 1: Write the proportion equation
   57,728.48 : 86,555.39 = 37,947.06 : x
2. Step 2: Convert to fraction form
   57,728.48/86,555.39 = 37,947.06/x
3. Step 3: Cross multiply
   57,728.48x = 86,555.39 × 37,947.06
4. Step 4: Simplify right side
   57,728.48x = 3,284,522,387.92
5. Step 5: Solve for x
   x = 3,284,522,387.92/57,728.48
6. Step 6: Final answer
   x = 56,896.05