Finding the Fourth Proportional to 120,300.73, 166,009.79 and 66,582.54

Step by Step Solution

1. Step 1: Write the proportion equation
   120,300.73 : 166,009.79 = 66,582.54 : x
2. Step 2: Convert to fraction form
   120,300.73/166,009.79 = 66,582.54/x
3. Step 3: Cross multiply
   120,300.73x = 166,009.79 × 66,582.54
4. Step 4: Simplify right side
   120,300.73x = 11,053,353,150.15
5. Step 5: Solve for x
   x = 11,053,353,150.15/120,300.73
6. Step 6: Final answer
   x = 91,881.02