Finding the Fourth Proportional to 57,078.36, 78,763.86 and 31,923

Step by Step Solution

1. Step 1: Write the proportion equation
   57,078.36 : 78,763.86 = 31,923 : x
2. Step 2: Convert to fraction form
   57,078.36/78,763.86 = 31,923/x
3. Step 3: Cross multiply
   57,078.36x = 78,763.86 × 31,923
4. Step 4: Simplify right side
   57,078.36x = 2,514,378,702.78
5. Step 5: Solve for x
   x = 2,514,378,702.78/57,078.36
6. Step 6: Final answer
   x = 44,051.35