Finding the Fourth Proportional to 119,645.31, 165,109.82 and 65,197.38

Step by Step Solution

1. Step 1: Write the proportion equation
   119,645.31 : 165,109.82 = 65,197.38 : x
2. Step 2: Convert to fraction form
   119,645.31/165,109.82 = 65,197.38/x
3. Step 3: Cross multiply
   119,645.31x = 165,109.82 × 65,197.38
4. Step 4: Simplify right side
   119,645.31x = 10,764,728,252.04
5. Step 5: Solve for x
   x = 10,764,728,252.04/119,645.31
6. Step 6: Final answer
   x = 89,972.00