Finding the Fourth Proportional to 209,456.72, 314,214.24 and 67,306.24

Step by Step Solution

1. Step 1: Write the proportion equation
   209,456.72 : 314,214.24 = 67,306.24 : x
2. Step 2: Convert to fraction form
   209,456.72/314,214.24 = 67,306.24/x
3. Step 3: Cross multiply
   209,456.72x = 314,214.24 × 67,306.24
4. Step 4: Simplify right side
   209,456.72x = 21,148,579,048.86
5. Step 5: Solve for x
   x = 21,148,579,048.86/209,456.72
6. Step 6: Final answer
   x = 100,968.73