Finding the Fourth Proportional to 109,318.10, 164,050.05 and 50,123.30

Step by Step Solution

1. Step 1: Write the proportion equation
   109,318.10 : 164,050.05 = 50,123.30 : x
2. Step 2: Convert to fraction form
   109,318.10/164,050.05 = 50,123.30/x
3. Step 3: Cross multiply
   109,318.10x = 164,050.05 × 50,123.30
4. Step 4: Simplify right side
   109,318.10x = 8,222,729,871.17
5. Step 5: Solve for x
   x = 8,222,729,871.17/109,318.10
6. Step 6: Final answer
   x = 75,218.38