Finding the Fourth Proportional to 57,895.31, 79,895.53 and 31,399.31

Step by Step Solution

1. Step 1: Write the proportion equation
   57,895.31 : 79,895.53 = 31,399.31 : x
2. Step 2: Convert to fraction form
   57,895.31/79,895.53 = 31,399.31/x
3. Step 3: Cross multiply
   57,895.31x = 79,895.53 × 31,399.31
4. Step 4: Simplify right side
   57,895.31x = 2,508,664,753.07
5. Step 5: Solve for x
   x = 2,508,664,753.07/57,895.31
6. Step 6: Final answer
   x = 43,331.05