Finding the Fourth Proportional to 82,468.08, 123,689.07 and 31,859.61

Step by Step Solution

1. Step 1: Write the proportion equation
   82,468.08 : 123,689.07 = 31,859.61 : x
2. Step 2: Convert to fraction form
   82,468.08/123,689.07 = 31,859.61/x
3. Step 3: Cross multiply
   82,468.08x = 123,689.07 × 31,859.61
4. Step 4: Simplify right side
   82,468.08x = 3,940,685,531.46
5. Step 5: Solve for x
   x = 3,940,685,531.46/82,468.08
6. Step 6: Final answer
   x = 47,784.37