Finding the Fourth Proportional to 109,338.10, 164,080.05 and 50,143.30

Step by Step Solution

1. Step 1: Write the proportion equation
   109,338.10 : 164,080.05 = 50,143.30 : x
2. Step 2: Convert to fraction form
   109,338.10/164,080.05 = 50,143.30/x
3. Step 3: Cross multiply
   109,338.10x = 164,080.05 × 50,143.30
4. Step 4: Simplify right side
   109,338.10x = 8,227,515,171.17
5. Step 5: Solve for x
   x = 8,227,515,171.17/109,338.10
6. Step 6: Final answer
   x = 75,248.38