Finding the Fourth Proportional to 82,013.96, 123,057.58 and 39,870.92

Step by Step Solution

1. Step 1: Write the proportion equation
   82,013.96 : 123,057.58 = 39,870.92 : x
2. Step 2: Convert to fraction form
   82,013.96/123,057.58 = 39,870.92/x
3. Step 3: Cross multiply
   82,013.96x = 123,057.58 × 39,870.92
4. Step 4: Simplify right side
   82,013.96x = 4,906,418,927.57
5. Step 5: Solve for x
   x = 4,906,418,927.57/82,013.96
6. Step 6: Final answer
   x = 59,824.19