Finding the Fourth Proportional to 109,309.89, 163,949.27 and 34,428.09

Step by Step Solution

1. Step 1: Write the proportion equation
   109,309.89 : 163,949.27 = 34,428.09 : x
2. Step 2: Convert to fraction form
   109,309.89/163,949.27 = 34,428.09/x
3. Step 3: Cross multiply
   109,309.89x = 163,949.27 × 34,428.09
4. Step 4: Simplify right side
   109,309.89x = 5,644,460,050.85
5. Step 5: Solve for x
   x = 5,644,460,050.85/109,309.89
6. Step 6: Final answer
   x = 51,637.23