Finding the Fourth Proportional to 162,481.81, 243,633.40 and 50,131.37

Step by Step Solution

1. Step 1: Write the proportion equation
   162,481.81 : 243,633.40 = 50,131.37 : x
2. Step 2: Convert to fraction form
   162,481.81/243,633.40 = 50,131.37/x
3. Step 3: Cross multiply
   162,481.81x = 243,633.40 × 50,131.37
4. Step 4: Simplify right side
   162,481.81x = 12,213,676,119.76
5. Step 5: Solve for x
   x = 12,213,676,119.76/162,481.81
6. Step 6: Final answer
   x = 75,169.50