Finding the Fourth Proportional to 173,805.55, 260,642.71 and 80,245.69

Step by Step Solution

1. Step 1: Write the proportion equation
   173,805.55 : 260,642.71 = 80,245.69 : x
2. Step 2: Convert to fraction form
   173,805.55/260,642.71 = 80,245.69/x
3. Step 3: Cross multiply
   173,805.55x = 260,642.71 × 80,245.69
4. Step 4: Simplify right side
   173,805.55x = 20,915,453,556.12
5. Step 5: Solve for x
   x = 20,915,453,556.12/173,805.55
6. Step 6: Final answer
   x = 120,338.24