Finding the Fourth Proportional to 162,490, 243,758.31 and 50,179.81

Step by Step Solution

1. Step 1: Write the proportion equation
   162,490 : 243,758.31 = 50,179.81 : x
2. Step 2: Convert to fraction form
   162,490/243,758.31 = 50,179.81/x
3. Step 3: Cross multiply
   162,490x = 243,758.31 × 50,179.81
4. Step 4: Simplify right side
   162,490x = 12,231,745,681.72
5. Step 5: Solve for x
   x = 12,231,745,681.72/162,490
6. Step 6: Final answer
   x = 75,276.91