Finding the Fourth Proportional to 82,345.16, 123,535.20 and 31,745.50

Step by Step Solution

1. Step 1: Write the proportion equation
   82,345.16 : 123,535.20 = 31,745.50 : x
2. Step 2: Convert to fraction form
   82,345.16/123,535.20 = 31,745.50/x
3. Step 3: Cross multiply
   82,345.16x = 123,535.20 × 31,745.50
4. Step 4: Simplify right side
   82,345.16x = 3,921,686,073.92
5. Step 5: Solve for x
   x = 3,921,686,073.92/82,345.16
6. Step 6: Final answer
   x = 47,624.97