Finding the Fourth Proportional to 284,727.56, 427,091.27 and 260,968.37

Step by Step Solution

1. Step 1: Write the proportion equation
   284,727.56 : 427,091.27 = 260,968.37 : x
2. Step 2: Convert to fraction form
   284,727.56/427,091.27 = 260,968.37/x
3. Step 3: Cross multiply
   284,727.56x = 427,091.27 × 260,968.37
4. Step 4: Simplify right side
   284,727.56x = 111,457,309,132.83
5. Step 5: Solve for x
   x = 111,457,309,132.83/284,727.56
6. Step 6: Final answer
   x = 391,452.49