Finding the Fourth Proportional to 166,096.49, 229,209.95 and 90,645.53

Step by Step Solution

1. Step 1: Write the proportion equation
   166,096.49 : 229,209.95 = 90,645.53 : x
2. Step 2: Convert to fraction form
   166,096.49/229,209.95 = 90,645.53/x
3. Step 3: Cross multiply
   166,096.49x = 229,209.95 × 90,645.53
4. Step 4: Simplify right side
   166,096.49x = 20,776,856,479.59
5. Step 5: Solve for x
   x = 20,776,856,479.59/166,096.49
6. Step 6: Final answer
   x = 125,089.08