Finding the Fourth Proportional to 216,112.04, 298,234.98 and 120,618.72

Step by Step Solution

1. Step 1: Write the proportion equation
   216,112.04 : 298,234.98 = 120,618.72 : x
2. Step 2: Convert to fraction form
   216,112.04/298,234.98 = 120,618.72/x
3. Step 3: Cross multiply
   216,112.04x = 298,234.98 × 120,618.72
4. Step 4: Simplify right side
   216,112.04x = 35,972,721,546.83
5. Step 5: Solve for x
   x = 35,972,721,546.83/216,112.04
6. Step 6: Final answer
   x = 166,454.04