Finding the Fourth Proportional to 308,197, 425,311.86 and 166,885

Step by Step Solution

1. Step 1: Write the proportion equation
   308,197 : 425,311.86 = 166,885 : x
2. Step 2: Convert to fraction form
   308,197/425,311.86 = 166,885/x
3. Step 3: Cross multiply
   308,197x = 425,311.86 × 166,885
4. Step 4: Simplify right side
   308,197x = 70,978,169,756.10
5. Step 5: Solve for x
   x = 70,978,169,756.10/308,197
6. Step 6: Final answer
   x = 230,301.30