Finding the Fourth Proportional to 166,388.50, 229,616.12 and 90,937

Step by Step Solution

1. Step 1: Write the proportion equation
   166,388.50 : 229,616.12 = 90,937 : x
2. Step 2: Convert to fraction form
   166,388.50/229,616.12 = 90,937/x
3. Step 3: Cross multiply
   166,388.50x = 229,616.12 × 90,937
4. Step 4: Simplify right side
   166,388.50x = 20,880,601,104.44
5. Step 5: Solve for x
   x = 20,880,601,104.44/166,388.50
6. Step 6: Final answer
   x = 125,493.05