Finding the Fourth Proportional to 119,699.09, 165,185.83 and 65,986.03

Step by Step Solution

1. Step 1: Write the proportion equation
   119,699.09 : 165,185.83 = 65,986.03 : x
2. Step 2: Convert to fraction form
   119,699.09/165,185.83 = 65,986.03/x
3. Step 3: Cross multiply
   119,699.09x = 165,185.83 × 65,986.03
4. Step 4: Simplify right side
   119,699.09x = 10,899,957,133.95
5. Step 5: Solve for x
   x = 10,899,957,133.95/119,699.09
6. Step 6: Final answer
   x = 91,061.32