Finding the Fourth Proportional to 427,078.16, 589,322.72 and 236,060.72

Step by Step Solution

1. Step 1: Write the proportion equation
   427,078.16 : 589,322.72 = 236,060.72 : x
2. Step 2: Convert to fraction form
   427,078.16/589,322.72 = 236,060.72/x
3. Step 3: Cross multiply
   427,078.16x = 589,322.72 × 236,060.72
4. Step 4: Simplify right side
   427,078.16x = 139,115,945,595.56
5. Step 5: Solve for x
   x = 139,115,945,595.56/427,078.16
6. Step 6: Final answer
   x = 325,738.84