Finding the Fourth Proportional to 57,019.83, 78,685.97 and 31,525.54

Step by Step Solution

1. Step 1: Write the proportion equation
   57,019.83 : 78,685.97 = 31,525.54 : x
2. Step 2: Convert to fraction form
   57,019.83/78,685.97 = 31,525.54/x
3. Step 3: Cross multiply
   57,019.83x = 78,685.97 × 31,525.54
4. Step 4: Simplify right side
   57,019.83x = 2,480,617,694.67
5. Step 5: Solve for x
   x = 2,480,617,694.67/57,019.83
6. Step 6: Final answer
   x = 43,504.47