Finding the Fourth Proportional to 172,760.69, 259,216.34 and 60,521.42

Step by Step Solution

1. Step 1: Write the proportion equation
   172,760.69 : 259,216.34 = 60,521.42 : x
2. Step 2: Convert to fraction form
   172,760.69/259,216.34 = 60,521.42/x
3. Step 3: Cross multiply
   172,760.69x = 259,216.34 × 60,521.42
4. Step 4: Simplify right side
   172,760.69x = 15,688,141,329.44
5. Step 5: Solve for x
   x = 15,688,141,329.44/172,760.69
6. Step 6: Final answer
   x = 90,808.51