Finding the Fourth Proportional to 162,418.20, 243,653.52 and 50,072.12

Step by Step Solution

1. Step 1: Write the proportion equation
   162,418.20 : 243,653.52 = 50,072.12 : x
2. Step 2: Convert to fraction form
   162,418.20/243,653.52 = 50,072.12/x
3. Step 3: Cross multiply
   162,418.20x = 243,653.52 × 50,072.12
4. Step 4: Simplify right side
   162,418.20x = 12,200,248,291.86
5. Step 5: Solve for x
   x = 12,200,248,291.86/162,418.20
6. Step 6: Final answer
   x = 75,116.26