Finding the Fourth Proportional to 57,019.82, 78,685.98 and 31,525.54

Step by Step Solution

1. Step 1: Write the proportion equation
   57,019.82 : 78,685.98 = 31,525.54 : x
2. Step 2: Convert to fraction form
   57,019.82/78,685.98 = 31,525.54/x
3. Step 3: Cross multiply
   57,019.82x = 78,685.98 × 31,525.54
4. Step 4: Simplify right side
   57,019.82x = 2,480,618,009.93
5. Step 5: Solve for x
   x = 2,480,618,009.93/57,019.82
6. Step 6: Final answer
   x = 43,504.49