Finding the Fourth Proportional to 57,939.25, 79,956.17 and 31,443.25

Step by Step Solution

1. Step 1: Write the proportion equation
   57,939.25 : 79,956.17 = 31,443.25 : x
2. Step 2: Convert to fraction form
   57,939.25/79,956.17 = 31,443.25/x
3. Step 3: Cross multiply
   57,939.25x = 79,956.17 × 31,443.25
4. Step 4: Simplify right side
   57,939.25x = 2,514,081,842.35
5. Step 5: Solve for x
   x = 2,514,081,842.35/57,939.25
6. Step 6: Final answer
   x = 43,391.69