Finding the Fourth Proportional to 216,086.24, 298,213.98 and 120,611.54

Step by Step Solution

1. Step 1: Write the proportion equation
   216,086.24 : 298,213.98 = 120,611.54 : x
2. Step 2: Convert to fraction form
   216,086.24/298,213.98 = 120,611.54/x
3. Step 3: Cross multiply
   216,086.24x = 298,213.98 × 120,611.54
4. Step 4: Simplify right side
   216,086.24x = 35,968,047,377.33
5. Step 5: Solve for x
   x = 35,968,047,377.33/216,086.24
6. Step 6: Final answer
   x = 166,452.28