Finding the Fourth Proportional to 113,109.44, 169,401.60 and 109,172.96

Step by Step Solution

1. Step 1: Write the proportion equation
   113,109.44 : 169,401.60 = 109,172.96 : x
2. Step 2: Convert to fraction form
   113,109.44/169,401.60 = 109,172.96/x
3. Step 3: Cross multiply
   113,109.44x = 169,401.60 × 109,172.96
4. Step 4: Simplify right side
   113,109.44x = 18,494,074,100.74
5. Step 5: Solve for x
   x = 18,494,074,100.74/113,109.44
6. Step 6: Final answer
   x = 163,506.02