Finding the Fourth Proportional to 82,277.16, 123,421.50 and 40,713

Step by Step Solution

1. Step 1: Write the proportion equation
   82,277.16 : 123,421.50 = 40,713 : x
2. Step 2: Convert to fraction form
   82,277.16/123,421.50 = 40,713/x
3. Step 3: Cross multiply
   82,277.16x = 123,421.50 × 40,713
4. Step 4: Simplify right side
   82,277.16x = 5,024,859,529.50
5. Step 5: Solve for x
   x = 5,024,859,529.50/82,277.16
6. Step 6: Final answer
   x = 61,072.35