Finding the Fourth Proportional to 120,385.23, 166,127.01 and 65,936.52

Step by Step Solution

1. Step 1: Write the proportion equation
   120,385.23 : 166,127.01 = 65,936.52 : x
2. Step 2: Convert to fraction form
   120,385.23/166,127.01 = 65,936.52/x
3. Step 3: Cross multiply
   120,385.23x = 166,127.01 × 65,936.52
4. Step 4: Simplify right side
   120,385.23x = 10,953,836,917.41
5. Step 5: Solve for x
   x = 10,953,836,917.41/120,385.23
6. Step 6: Final answer
   x = 90,989.87