Finding the Fourth Proportional to 119,651.31, 165,118.77 and 65,936.16

Step by Step Solution

1. Step 1: Write the proportion equation
   119,651.31 : 165,118.77 = 65,936.16 : x
2. Step 2: Convert to fraction form
   119,651.31/165,118.77 = 65,936.16/x
3. Step 3: Cross multiply
   119,651.31x = 165,118.77 × 65,936.16
4. Step 4: Simplify right side
   119,651.31x = 10,887,297,637.72
5. Step 5: Solve for x
   x = 10,887,297,637.72/119,651.31
6. Step 6: Final answer
   x = 90,991.88