Finding the Fourth Proportional to 114,028.50, 171,048.42 and 80,786.10

Step by Step Solution

1. Step 1: Write the proportion equation
   114,028.50 : 171,048.42 = 80,786.10 : x
2. Step 2: Convert to fraction form
   114,028.50/171,048.42 = 80,786.10/x
3. Step 3: Cross multiply
   114,028.50x = 171,048.42 × 80,786.10
4. Step 4: Simplify right side
   114,028.50x = 13,818,334,762.96
5. Step 5: Solve for x
   x = 13,818,334,762.96/114,028.50
6. Step 6: Final answer
   x = 121,183.17