Finding the Fourth Proportional to 83,159.82, 124,739.82 and 20,830.32

Step by Step Solution

1. Step 1: Write the proportion equation
   83,159.82 : 124,739.82 = 20,830.32 : x
2. Step 2: Convert to fraction form
   83,159.82/124,739.82 = 20,830.32/x
3. Step 3: Cross multiply
   83,159.82x = 124,739.82 × 20,830.32
4. Step 4: Simplify right side
   83,159.82x = 2,598,370,367.34
5. Step 5: Solve for x
   x = 2,598,370,367.34/83,159.82
6. Step 6: Final answer
   x = 31,245.50