Finding the Fourth Proportional to 80,613.59, 120,110.38 and 76,086.50

Step by Step Solution

1. Step 1: Write the proportion equation
   80,613.59 : 120,110.38 = 76,086.50 : x
2. Step 2: Convert to fraction form
   80,613.59/120,110.38 = 76,086.50/x
3. Step 3: Cross multiply
   80,613.59x = 120,110.38 × 76,086.50
4. Step 4: Simplify right side
   80,613.59x = 9,138,778,427.87
5. Step 5: Solve for x
   x = 9,138,778,427.87/80,613.59
6. Step 6: Final answer
   x = 113,365.23