Finding the Fourth Proportional to 57,692.50, 79,615.65 and 31,196.50

Step by Step Solution

1. Step 1: Write the proportion equation
   57,692.50 : 79,615.65 = 31,196.50 : x
2. Step 2: Convert to fraction form
   57,692.50/79,615.65 = 31,196.50/x
3. Step 3: Cross multiply
   57,692.50x = 79,615.65 × 31,196.50
4. Step 4: Simplify right side
   57,692.50x = 2,483,729,625.23
5. Step 5: Solve for x
   x = 2,483,729,625.23/57,692.50
6. Step 6: Final answer
   x = 43,051.17