Finding the Fourth Proportional to 80,456.13, 120,656.86 and 27,853.31

Step by Step Solution

1. Step 1: Write the proportion equation
   80,456.13 : 120,656.86 = 27,853.31 : x
2. Step 2: Convert to fraction form
   80,456.13/120,656.86 = 27,853.31/x
3. Step 3: Cross multiply
   80,456.13x = 120,656.86 × 27,853.31
4. Step 4: Simplify right side
   80,456.13x = 3,360,693,157.22
5. Step 5: Solve for x
   x = 3,360,693,157.22/80,456.13
6. Step 6: Final answer
   x = 41,770.50