Finding the Fourth Proportional to 57,682.50, 79,601.85 and 31,186.50

Step by Step Solution

1. Step 1: Write the proportion equation
   57,682.50 : 79,601.85 = 31,186.50 : x
2. Step 2: Convert to fraction form
   57,682.50/79,601.85 = 31,186.50/x
3. Step 3: Cross multiply
   57,682.50x = 79,601.85 × 31,186.50
4. Step 4: Simplify right side
   57,682.50x = 2,482,503,095.03
5. Step 5: Solve for x
   x = 2,482,503,095.03/57,682.50
6. Step 6: Final answer
   x = 43,037.37