Finding the Fourth Proportional to 57,069, 78,755.49 and 31,918.50

Step by Step Solution

1. Step 1: Write the proportion equation
   57,069 : 78,755.49 = 31,918.50 : x
2. Step 2: Convert to fraction form
   57,069/78,755.49 = 31,918.50/x
3. Step 3: Cross multiply
   57,069x = 78,755.49 × 31,918.50
4. Step 4: Simplify right side
   57,069x = 2,513,757,107.57
5. Step 5: Solve for x
   x = 2,513,757,107.57/57,069
6. Step 6: Final answer
   x = 44,047.68