Finding the Fourth Proportional to 82,320.57, 123,485.31 and 26,165.16

Step by Step Solution

1. Step 1: Write the proportion equation
   82,320.57 : 123,485.31 = 26,165.16 : x
2. Step 2: Convert to fraction form
   82,320.57/123,485.31 = 26,165.16/x
3. Step 3: Cross multiply
   82,320.57x = 123,485.31 × 26,165.16
4. Step 4: Simplify right side
   82,320.57x = 3,231,012,893.80
5. Step 5: Solve for x
   x = 3,231,012,893.80/82,320.57
6. Step 6: Final answer
   x = 39,249.16