Finding the Fourth Proportional to 140,018.52, 209,578.20 and 73,363.60

Step by Step Solution

1. Step 1: Write the proportion equation
   140,018.52 : 209,578.20 = 73,363.60 : x
2. Step 2: Convert to fraction form
   140,018.52/209,578.20 = 73,363.60/x
3. Step 3: Cross multiply
   140,018.52x = 209,578.20 × 73,363.60
4. Step 4: Simplify right side
   140,018.52x = 15,375,411,233.52
5. Step 5: Solve for x
   x = 15,375,411,233.52/140,018.52
6. Step 6: Final answer
   x = 109,809.84