Finding the Fourth Proportional to 120,384.73, 166,126.33 and 65,936.02

Step by Step Solution

1. Step 1: Write the proportion equation
   120,384.73 : 166,126.33 = 65,936.02 : x
2. Step 2: Convert to fraction form
   120,384.73/166,126.33 = 65,936.02/x
3. Step 3: Cross multiply
   120,384.73x = 166,126.33 × 65,936.02
4. Step 4: Simplify right side
   120,384.73x = 10,953,708,687.73
5. Step 5: Solve for x
   x = 10,953,708,687.73/120,384.73
6. Step 6: Final answer
   x = 90,989.19