Finding the Fourth Proportional to 166,072.08, 229,185.02 and 90,624.72

Step by Step Solution

1. Step 1: Write the proportion equation
   166,072.08 : 229,185.02 = 90,624.72 : x
2. Step 2: Convert to fraction form
   166,072.08/229,185.02 = 90,624.72/x
3. Step 3: Cross multiply
   166,072.08x = 229,185.02 × 90,624.72
4. Step 4: Simplify right side
   166,072.08x = 20,769,828,265.69
5. Step 5: Solve for x
   x = 20,769,828,265.69/166,072.08
6. Step 6: Final answer
   x = 125,065.14