Finding the Fourth Proportional to 104,839.86, 157,128.56 and 82,565.26

Step by Step Solution

1. Step 1: Write the proportion equation
   104,839.86 : 157,128.56 = 82,565.26 : x
2. Step 2: Convert to fraction form
   104,839.86/157,128.56 = 82,565.26/x
3. Step 3: Cross multiply
   104,839.86x = 157,128.56 × 82,565.26
4. Step 4: Simplify right side
   104,839.86x = 12,973,360,409.83
5. Step 5: Solve for x
   x = 12,973,360,409.83/104,839.86
6. Step 6: Final answer
   x = 123,744.54