Finding the Fourth Proportional to 57,144.07, 78,858.73 and 31,993.57

Step by Step Solution

1. Step 1: Write the proportion equation
   57,144.07 : 78,858.73 = 31,993.57 : x
2. Step 2: Convert to fraction form
   57,144.07/78,858.73 = 31,993.57/x
3. Step 3: Cross multiply
   57,144.07x = 78,858.73 × 31,993.57
4. Step 4: Simplify right side
   57,144.07x = 2,522,972,298.37
5. Step 5: Solve for x
   x = 2,522,972,298.37/57,144.07
6. Step 6: Final answer
   x = 44,151.08