Finding the Fourth Proportional to 308,461.50, 462,760.29 and 131,120.10

Step by Step Solution

1. Step 1: Write the proportion equation
   308,461.50 : 462,760.29 = 131,120.10 : x
2. Step 2: Convert to fraction form
   308,461.50/462,760.29 = 131,120.10/x
3. Step 3: Cross multiply
   308,461.50x = 462,760.29 × 131,120.10
4. Step 4: Simplify right side
   308,461.50x = 60,677,175,500.83
5. Step 5: Solve for x
   x = 60,677,175,500.83/308,461.50
6. Step 6: Final answer
   x = 196,709.07