Finding the Fourth Proportional to 109,311.12, 163,953.72 and 34,428.24

Step by Step Solution

1. Step 1: Write the proportion equation
   109,311.12 : 163,953.72 = 34,428.24 : x
2. Step 2: Convert to fraction form
   109,311.12/163,953.72 = 34,428.24/x
3. Step 3: Cross multiply
   109,311.12x = 163,953.72 × 34,428.24
4. Step 4: Simplify right side
   109,311.12x = 5,644,638,021.05
5. Step 5: Solve for x
   x = 5,644,638,021.05/109,311.12
6. Step 6: Final answer
   x = 51,638.28