Finding the Fourth Proportional to 82,569.69, 123,815.48 and 31,992.39

Step by Step Solution

1. Step 1: Write the proportion equation
   82,569.69 : 123,815.48 = 31,992.39 : x
2. Step 2: Convert to fraction form
   82,569.69/123,815.48 = 31,992.39/x
3. Step 3: Cross multiply
   82,569.69x = 123,815.48 × 31,992.39
4. Step 4: Simplify right side
   82,569.69x = 3,961,152,964.24
5. Step 5: Solve for x
   x = 3,961,152,964.24/82,569.69
6. Step 6: Final answer
   x = 47,973.45