Finding the Fourth Proportional to 166,066.08, 229,176.72 and 90,618.72

Step by Step Solution

1. Step 1: Write the proportion equation
   166,066.08 : 229,176.72 = 90,618.72 : x
2. Step 2: Convert to fraction form
   166,066.08/229,176.72 = 90,618.72/x
3. Step 3: Cross multiply
   166,066.08x = 229,176.72 × 90,618.72
4. Step 4: Simplify right side
   166,066.08x = 20,767,701,020.20
5. Step 5: Solve for x
   x = 20,767,701,020.20/166,066.08
6. Step 6: Final answer
   x = 125,056.85