Finding the Fourth Proportional to 120,483.05, 166,270.86 and 72,727.07

Step by Step Solution

1. Step 1: Write the proportion equation
   120,483.05 : 166,270.86 = 72,727.07 : x
2. Step 2: Convert to fraction form
   120,483.05/166,270.86 = 72,727.07/x
3. Step 3: Cross multiply
   120,483.05x = 166,270.86 × 72,727.07
4. Step 4: Simplify right side
   120,483.05x = 12,092,391,642.83
5. Step 5: Solve for x
   x = 12,092,391,642.83/120,483.05
6. Step 6: Final answer
   x = 100,365.92