Finding the Fourth Proportional to 57,067.98, 78,756.15 and 31,573.92

Step by Step Solution

1. Step 1: Write the proportion equation
   57,067.98 : 78,756.15 = 31,573.92 : x
2. Step 2: Convert to fraction form
   57,067.98/78,756.15 = 31,573.92/x
3. Step 3: Cross multiply
   57,067.98x = 78,756.15 × 31,573.92
4. Step 4: Simplify right side
   57,067.98x = 2,486,640,379.61
5. Step 5: Solve for x
   x = 2,486,640,379.61/57,067.98
6. Step 6: Final answer
   x = 43,573.30