Finding the Fourth Proportional to 308,078, 425,147.68 and 166,766

Step by Step Solution

1. Step 1: Write the proportion equation
   308,078 : 425,147.68 = 166,766 : x
2. Step 2: Convert to fraction form
   308,078/425,147.68 = 166,766/x
3. Step 3: Cross multiply
   308,078x = 425,147.68 × 166,766
4. Step 4: Simplify right side
   308,078x = 70,900,178,002.88
5. Step 5: Solve for x
   x = 70,900,178,002.88/308,078
6. Step 6: Final answer
   x = 230,137.10