Finding the Fourth Proportional to 57,065.94, 78,753.31 and 31,571.86

Step by Step Solution

1. Step 1: Write the proportion equation
   57,065.94 : 78,753.31 = 31,571.86 : x
2. Step 2: Convert to fraction form
   57,065.94/78,753.31 = 31,571.86/x
3. Step 3: Cross multiply
   57,065.94x = 78,753.31 × 31,571.86
4. Step 4: Simplify right side
   57,065.94x = 2,486,388,477.86
5. Step 5: Solve for x
   x = 2,486,388,477.86/57,065.94
6. Step 6: Final answer
   x = 43,570.45