Finding the Fourth Proportional to 120,870.37, 166,801.31 and 67,155.45

Step by Step Solution

1. Step 1: Write the proportion equation
   120,870.37 : 166,801.31 = 67,155.45 : x
2. Step 2: Convert to fraction form
   120,870.37/166,801.31 = 67,155.45/x
3. Step 3: Cross multiply
   120,870.37x = 166,801.31 × 67,155.45
4. Step 4: Simplify right side
   120,870.37x = 11,201,617,033.64
5. Step 5: Solve for x
   x = 11,201,617,033.64/120,870.37
6. Step 6: Final answer
   x = 92,674.63