Finding the Fourth Proportional to 120,270.86, 180,477.56 and 67,007.42

Step by Step Solution

1. Step 1: Write the proportion equation
   120,270.86 : 180,477.56 = 67,007.42 : x
2. Step 2: Convert to fraction form
   120,270.86/180,477.56 = 67,007.42/x
3. Step 3: Cross multiply
   120,270.86x = 180,477.56 × 67,007.42
4. Step 4: Simplify right side
   120,270.86x = 12,093,335,663.50
5. Step 5: Solve for x
   x = 12,093,335,663.50/120,270.86
6. Step 6: Final answer
   x = 100,550.84