Finding the Fourth Proportional to 119,707.25, 165,196.50 and 65,991.08

Step by Step Solution

1. Step 1: Write the proportion equation
   119,707.25 : 165,196.50 = 65,991.08 : x
2. Step 2: Convert to fraction form
   119,707.25/165,196.50 = 65,991.08/x
3. Step 3: Cross multiply
   119,707.25x = 165,196.50 × 65,991.08
4. Step 4: Simplify right side
   119,707.25x = 10,901,495,447.22
5. Step 5: Solve for x
   x = 10,901,495,447.22/119,707.25
6. Step 6: Final answer
   x = 91,067.96