Finding the Fourth Proportional to 119,669.31, 165,142.80 and 65,954.34

Step by Step Solution

1. Step 1: Write the proportion equation
   119,669.31 : 165,142.80 = 65,954.34 : x
2. Step 2: Convert to fraction form
   119,669.31/165,142.80 = 65,954.34/x
3. Step 3: Cross multiply
   119,669.31x = 165,142.80 × 65,954.34
4. Step 4: Simplify right side
   119,669.31x = 10,891,884,379.75
5. Step 5: Solve for x
   x = 10,891,884,379.75/119,669.31
6. Step 6: Final answer
   x = 91,016.52