Finding the Fourth Proportional to 166,321.84, 229,527.24 and 90,868.72

Step by Step Solution

1. Step 1: Write the proportion equation
   166,321.84 : 229,527.24 = 90,868.72 : x
2. Step 2: Convert to fraction form
   166,321.84/229,527.24 = 90,868.72/x
3. Step 3: Cross multiply
   166,321.84x = 229,527.24 × 90,868.72
4. Step 4: Simplify right side
   166,321.84x = 20,856,846,503.93
5. Step 5: Solve for x
   x = 20,856,846,503.93/166,321.84
6. Step 6: Final answer
   x = 125,400.53