Finding the Fourth Proportional to 120,185.73, 165,849.57 and 65,727.06

Step by Step Solution

1. Step 1: Write the proportion equation
   120,185.73 : 165,849.57 = 65,727.06 : x
2. Step 2: Convert to fraction form
   120,185.73/165,849.57 = 65,727.06/x
3. Step 3: Cross multiply
   120,185.73x = 165,849.57 × 65,727.06
4. Step 4: Simplify right side
   120,185.73x = 10,900,804,638.36
5. Step 5: Solve for x
   x = 10,900,804,638.36/120,185.73
6. Step 6: Final answer
   x = 90,699.66