Finding the Fourth Proportional to 82,866.49, 124,216.50 and 26,665.29

Step by Step Solution

1. Step 1: Write the proportion equation
   82,866.49 : 124,216.50 = 26,665.29 : x
2. Step 2: Convert to fraction form
   82,866.49/124,216.50 = 26,665.29/x
3. Step 3: Cross multiply
   82,866.49x = 124,216.50 × 26,665.29
4. Step 4: Simplify right side
   82,866.49x = 3,312,268,995.29
5. Step 5: Solve for x
   x = 3,312,268,995.29/82,866.49
6. Step 6: Final answer
   x = 39,971.15