Finding the Fourth Proportional to 109,720.88, 164,456.86 and 50,434.04

Step by Step Solution

1. Step 1: Write the proportion equation
   109,720.88 : 164,456.86 = 50,434.04 : x
2. Step 2: Convert to fraction form
   109,720.88/164,456.86 = 50,434.04/x
3. Step 3: Cross multiply
   109,720.88x = 164,456.86 × 50,434.04
4. Step 4: Simplify right side
   109,720.88x = 8,294,223,855.51
5. Step 5: Solve for x
   x = 8,294,223,855.51/109,720.88
6. Step 6: Final answer
   x = 75,593.85