Finding the Fourth Proportional to 41,986.08, 57,892.72 and 31,357.76

Step by Step Solution

1. Step 1: Write the proportion equation
   41,986.08 : 57,892.72 = 31,357.76 : x
2. Step 2: Convert to fraction form
   41,986.08/57,892.72 = 31,357.76/x
3. Step 3: Cross multiply
   41,986.08x = 57,892.72 × 31,357.76
4. Step 4: Simplify right side
   41,986.08x = 1,815,386,019.51
5. Step 5: Solve for x
   x = 1,815,386,019.51/41,986.08
6. Step 6: Final answer
   x = 43,237.81