Finding the Fourth Proportional to 209,134.86, 313,676.37 and 123,796.50

Step by Step Solution

1. Step 1: Write the proportion equation
   209,134.86 : 313,676.37 = 123,796.50 : x
2. Step 2: Convert to fraction form
   209,134.86/313,676.37 = 123,796.50/x
3. Step 3: Cross multiply
   209,134.86x = 313,676.37 × 123,796.50
4. Step 4: Simplify right side
   209,134.86x = 38,832,036,738.71
5. Step 5: Solve for x
   x = 38,832,036,738.71/209,134.86
6. Step 6: Final answer
   x = 185,679.41