Finding the Fourth Proportional to 82,790.86, 124,148.22 and 26,620.60

Step by Step Solution

1. Step 1: Write the proportion equation
   82,790.86 : 124,148.22 = 26,620.60 : x
2. Step 2: Convert to fraction form
   82,790.86/124,148.22 = 26,620.60/x
3. Step 3: Cross multiply
   82,790.86x = 124,148.22 × 26,620.60
4. Step 4: Simplify right side
   82,790.86x = 3,304,900,105.33
5. Step 5: Solve for x
   x = 3,304,900,105.33/82,790.86
6. Step 6: Final answer
   x = 39,918.66