Finding the Fourth Proportional to 109,633.10, 164,401.05 and 50,438.30

Step by Step Solution

1. Step 1: Write the proportion equation
   109,633.10 : 164,401.05 = 50,438.30 : x
2. Step 2: Convert to fraction form
   109,633.10/164,401.05 = 50,438.30/x
3. Step 3: Cross multiply
   109,633.10x = 164,401.05 × 50,438.30
4. Step 4: Simplify right side
   109,633.10x = 8,292,109,480.22
5. Step 5: Solve for x
   x = 8,292,109,480.22/109,633.10
6. Step 6: Final answer
   x = 75,635.09