Finding the Fourth Proportional to 120,738.51, 166,610.81 and 67,019.30

Step by Step Solution

1. Step 1: Write the proportion equation
   120,738.51 : 166,610.81 = 67,019.30 : x
2. Step 2: Convert to fraction form
   120,738.51/166,610.81 = 67,019.30/x
3. Step 3: Cross multiply
   120,738.51x = 166,610.81 × 67,019.30
4. Step 4: Simplify right side
   120,738.51x = 11,166,139,858.63
5. Step 5: Solve for x
   x = 11,166,139,858.63/120,738.51
6. Step 6: Final answer
   x = 92,482.01