Finding the Fourth Proportional to 339,951.33, 469,123.04 and 186,989.51

Step by Step Solution

1. Step 1: Write the proportion equation
   339,951.33 : 469,123.04 = 186,989.51 : x
2. Step 2: Convert to fraction form
   339,951.33/469,123.04 = 186,989.51/x
3. Step 3: Cross multiply
   339,951.33x = 469,123.04 × 186,989.51
4. Step 4: Simplify right side
   339,951.33x = 87,721,089,019.59
5. Step 5: Solve for x
   x = 87,721,089,019.59/339,951.33
6. Step 6: Final answer
   x = 258,040.14