Finding the Fourth Proportional to 339,760.27, 468,870.10 and 186,814.09

Step by Step Solution

1. Step 1: Write the proportion equation
   339,760.27 : 468,870.10 = 186,814.09 : x
2. Step 2: Convert to fraction form
   339,760.27/468,870.10 = 186,814.09/x
3. Step 3: Cross multiply
   339,760.27x = 468,870.10 × 186,814.09
4. Step 4: Simplify right side
   339,760.27x = 87,591,541,059.71
5. Step 5: Solve for x
   x = 87,591,541,059.71/339,760.27
6. Step 6: Final answer
   x = 257,803.96