Finding the Fourth Proportional to 120,100.50, 165,738.69 and 67,108.50

Step by Step Solution

1. Step 1: Write the proportion equation
   120,100.50 : 165,738.69 = 67,108.50 : x
2. Step 2: Convert to fraction form
   120,100.50/165,738.69 = 67,108.50/x
3. Step 3: Cross multiply
   120,100.50x = 165,738.69 × 67,108.50
4. Step 4: Simplify right side
   120,100.50x = 11,122,474,877.87
5. Step 5: Solve for x
   x = 11,122,474,877.87/120,100.50
6. Step 6: Final answer
   x = 92,609.73